Trivia: Actor Mark Harmon is the son of football great Tom Harmon and 1940s film star Elyse Knox; he is the brother of Kris Harmon -- ex-wife of Ricky Nelson -- and uncle of Kris and Ricky's actress daughter Tracy Nelson; and finally, Harmon is the husband of Mork and Mindy star Pam Dawber. Harmon emulated his dad by playing football at UCLA, then followed in mom's footsteps by turning to acting; his first movie was 1978's Comes a Horseman. Most of Harmon's starring film appearances are easy to take but unmemorable, such as his lackadaisical high-school teacher in Summer School (1988). A baseball fan, Harmon was once part-owner of the minor-league San Bernardino Spirit, a team which figured prominently in his 1988 film vehicle Stealing Home. Harmon is best known for his work on 1980s series TV: he has co-starred in Flamingo Road and Moonlighting, and played the lead role of AIDs-stricken Dr. Bob Calswell on St. Elsewhere. TV would prove to be a source of success for the actor, and he would go on to star on such popular shows as Chicago Hope and NCIS.

Trivia: David McCallum's parents were both members of the London Philharmonic; his mother was a cellist and his father was first violinist. The young Scots-born McCallum himself planned to pursue a musical career after serving with the Royal West African Frontier Force, but decided instead upon acting. Following his studies at the RADA, McCallum entered films in 1957, where he was usually cast as a troublemaking street punk or callow junior officer. His first American film (albeit lensed principally in England) was Freud (1962), in which he played a profoundly mother-obsessed mental patient. McCallum became the rage of the teeny-bopper set when he was cast as cool-headed Russian secret agent Ilya Kuryakin on TV's The Man From UNCLE (1964-68). At one point, McCallum was receiving far more fan mail than the series' ostensible star, Robert Vaughn; he took advantage of his celebrity to launch a brief singing career, duetting with Nancy Sinatra on the 1966 UNCLE episode "The Take Me to Your Leader Affair." He also wrote the music and lyrics and sang the title song of his 1967 movie vehicle Three Bites of the Apple. Following UNCLE, McCallum had a handful of solid dramatic film roles before returning to the small screen in the short-lived 1975 series The Invisible Man. He continued to appear primarily in episodic television, although he occasionally could be glimpsed on the big-screen as well. Highlights include The Watcher in the Woods, Matlock, The Wind, Murder She Wrote, and The A-Team. The nineties began with a major part in the sleeper Hear My Song, before continuing in Healer, Law and Order, and Cherry. McCallum became a fixture on television yet again at the beginning of the 21st century when he was cast as Donald "Ducky" Mallard on CBS' drama NCIS, which was for a time the top-rated scripted drama on network television.A man of sundry outside interests, McCallum's range of expertise includes computers and small-arms weaponry. Once wed to actress Jill Ireland, David McCallum has since 1967 been married to Katherine Carpenter.

Trivia: Going under the name Pauley P., actress Pauley Perrette (born March 27th, 1969) first gained notoriety with an extended arc on the acclaimed ABC drama Murder One. She followed that with guest spots on such shows as The Drew Carey Show and Frasier before landing a gig as a regular (using her full moniker) on the short-lived Party of Five spin-off Time of Your Life. After that series bowed, Perrette could be seen in small capacity in the big-screen hits Almost Famous and The Ring. In 2003, she finally landed in a series with staying power. This time it was the JAG spin-off Navy NCIS, a CBS drama that cast Perrette in a lead role alongside Mark Harmon.

Trivia: Actor Sean Murray began filling up his resumé when he was just a young teenager, making small appearances in movies like Hocus Pocus and This Boy's Life. He continued to steadily wrack up small and midsized roles in films and on television until 2004, when he joined the cast of the series NCIS playing Timothy McGee. His stepsister, Troian Bellisario, has appeared in NCIS as Murray's character's sister.

Trivia: A graduate of the famous School for the Performing Arts, actor Rocky Carroll continued his studies at the Conservatory of Theatre Arts at Webster University before moving to New York in the mid-'80s to try his hand at a professional acting career. He soon found success with the Shakespeare on Broadway series, and cultivated a flourishing career on-stage. Carroll also branched into screen acting, with recurring roles on Roc and Chicago Hope, and in movies like Crimson Tide, Born on the Fourth of July, and Yes Man.

Trivia: A graduate of Colorado's Niwot High School, actor Brian Dietzen gravitated to drama at eight years old, when he caught the acting bug from an elementary school play; in time, he extended his stage activities into high-school productions, and attended the University of Colorado at Boulder as a theater major in that institution's B.F.A. program. Under the mentorship of Sean Kelley, Dietzen formally trained in theatrical mainstays -- from Waiting for Godot to Equus; so successful were his efforts in these productions that it prompted him to join the Colorado Shakespeare Festival after graduation, and then to make the big leap to Los Angeles. Dietzen scored his first major coup in L.A. by signing on for a regular role in the short-lived WB series My Guide to Becoming a Rock Star, and then landed a small part in the American Idol spin-off movie From Justin to Kelly (2003). The actor is best known, however, for his recurring series role as Jimmy Palmer, assistant lab technician to Donald "Ducky" Mallard (David McCallum), on the popular CBS procedural thriller NCIS. On the side, he remained extremely active in stage work.

Trivia: Dropped out of college and took public speaking classes to help further her career. At the premiere of Gone (2012) she admitted she's always had a fear of being kidnapped. Was cast in NCIS in 2013 as a replacement for the departing Cote de Pablo; she was promoted to a series regular before her first episode aired.

Trivia: In his role as eager-to-fit-in exchange student Fez on the enduring and popular Fox sitcom That '70s Show, actor Wilmer Valderrama mangled the popular lingo of the eponymous decade with gleeful abandon. Though removed from his small-screen persona, the handsome actor can give the impression of a young Benicio Del Toro. His dorky and personable charm as Fez endeared him to television audiences, making him one of That '70s Show's defining personalities. Born January 30th, 1980, Valderrama is a Miami native whose family relocated to Venezuela when he was three years old; the aspiring actor would eventually return stateside to pursue a career in the entertainment industry. Valderrama joined the cast of That '70s Show shortly before finishing his high-school education at William Howard Taft High School in 1998, and three short years later, the television mainstay made his feature debut by taking to the diamond with a supporting role in the romantic teen comedy Summer Catch. Guest appearances on Grounded for Life and That '70s Show co-star Ashton Kutcher's hidden-camera prankster series, Punk'd, were quick to follow, and in 2003, Valderrama essayed the role of DJ Keoke in the flashy true-crime drama Party Monster. Based on the exploits of murderous club-kid Michael Alig, the film offered Valderrama an opportunity to truly separate himself from his popular small-screen persona. With That '70s Show still going strong in 2004, the popular television star's voice could also be heard in the animated children's film Clifford's Really Big Movie. 2006 found the actor playing a small supporting role for the scathing message movie Fast Food Nation, and took on the role of Detective Efrem Vega for the NBC television series Awake.Valderrama continued to concentrate on TV, booking guest arcs on shows like Suburgatory and Raising Hope before settling into more stable work with regular gigs on From Dusk till Dawn: The Series and the short-lived Minority Report series. In 2016, he joined the cast of NCIS for the 14th season of the show.

Trivia: Aspired to be an actor from the age of 5. Moved to London at the age of 17 to pursue his acting career. Was homeless for a short time while searching for work as an actor. Appeared in numerous British television series, including Law & Order: UK, Doctor Who, The Cut and Doctors. Nominated for BAFTA's Screen Nation Award for Best Emerging Talent in 2010. In 2013, moved to Los Angeles in hopes of furthering his acting career. Starred in a 2015 TV commercial for Lexus.

Trivia: Born in Pennsylvania c. 1967, Maria Bello attended Villanova University as a political science major, but acting ability - evident from an early drama class - altered her career plans. Following graduation, Bello honed her acting skills in a number of New York theater productions before she broke through to the public as one of the leads in the short-lived TV spy comedy Mr. and Mrs. Smith (1996). Bello gained broader primetime exposure as Dr. Anna Del Amico on NBC's blockbuster ER during the 1997 season and segued into films with her performance as recovering junkie Ben Stiller's confidante in the film-a-clef Permanent Midnight (1998), adapted from Jerry Stahl's harrowing book.Bello scored her first pop hit as Mel Gibson's beautiful cohort in the harsh crime drama Payback (1999). Poised to potentially become one of the select group of actors who transition smoothly from television to film, Bello co-starred as one of the bottle-tossing, bar-stomping babes in charge of the titular drinking establishment in the Bruckheimer-produced hellraiser Coyote Ugly (2000). When Coyote Ugly failed to live up to box office hopes, Bello starred as Suzi Loomis in Bruce Paltrow's Duets, and as Ruth Harkness in the IMAX feature China: The Panda Adventure (2001), based on her real-life experiences with the eponymous creatures. Bello scored a bona fide critical, if not financial, hit with Paul Schrader's biopic about slain Hogan's Heroes star Bob Crane, Auto Focus (2002). As Crane's co-star and second wife Patricia, Bello holds her own opposite Greg Kinnear's bravura performance as the nymphomaniacal Crane, evoking the complex emotions of a spouse who accepts yet ultimately cannot contend with her husband's desires.A year after Auto Focus, Bello would score even bigger with the critics with a starring role alongside William H. Macy in the gritty Vegas romance The Cooler. As the cocktail waitress who falls for Macy's sadsack ne'er-do-well, Bello brought a sense of extreme realism to her character. The film netted her a Best Supporting Actress nomination from the Screen Actors Guild and a runner-up prize from The National Society of Film Critics.In early 2004, Bello appeared as Johnny Depp's estranged wife in the Stephen King adaptation The Secret Window, and in John Sayles' well-received political thriller Silver City. Though subsequent appearances in the fairly forgettable Assault on Precinct 13, The Dark, and The Sisters followed in 2005, Bello's Golden Globe-nommed performance as an unassuming housewife who married into mystery in A History of Violence, coupled with her prominent performance as a determined alcohol lobbyist in the critically-acclaimed Thank You for Smoking, helped to get her back in the good graces of critics and end the year on a decidedly high note. When 2006 arrived, Bello joined Nicolas Cage, Michael Pena, and Maggie Gyllenhall in World Trade Center, Oliver Stone's docudrama/survival picture that recounted the experiences of two Port Authority firefighters trapped beneath the rubble of the destroyed buildings. Bello joins the cast of the same year's Flicka, adapted from the seminal children's novel by Mary O'Hara (and incarnated decades prior as the movie and TV series My Friend Flicka) , alongside Alison Lohman and country singer Tim McGraw.Bello had a lead part in Alan Ball's feature film directorial debut Towelhead in 2007, and tackled the indie horror film Downloading Nancy the next year. In 2010 she scored a small part in the Adam Sandler comedy Grown Ups as well as major parts in a couple of dramas - The Company Men and Beautiful Boy.She next returned to television, taking the lead role in the NBC remake of the British series Prime Suspect in 2011. The show was cancelled after only 13 episodes, but Bello quickly booked another television role, in the second season of Fox's Touch, opposite Kiefer Sutherland. That show was also canceled after that season, and Bello returned to film, reprising her role in Grown Up 2 in 2013.Active in social causes as well, Maria Bello co-founded the Harlem not-for-profit arts and education program, Dream Yard Drama Project for Kids.

Trivia: Father of three grown children.Worked as a journalist in the 1970s.In 1981, decided to quit journalism and work in television scriptwriting.In the mid 1990s, worked on U.S. cable shows filmed in Australia.Was a volunteer firefighter in Australia.Disappointed with the network system in Australia, in 2003 decided to move to the U.S.

Trivia: Started his career as a writer on kids shows like Rugrats and Mighty Morphin Power Rangers.Worked with wife Mimi Schmir on the TV series Shark.Under his oversight, NCIS was the most watched broadcast drama.Since assuming the role as NCIS showrunner in 2011, he has been featured on The Hollywood Reporter's Most Powerful Showrunners list every year since.Owner of the production company When Pigs Fly Incorporated.

Trivia: Born in New York City on August 8th, 1968 and raised in Fairfield, CT, prolific film and television actor Michael Weatherly got his start on an episode of The Cosby Show before moving on to carve out an impressive career on screens both large and small. While many television viewers would recognize Weatherly from walk-on roles in such popular television series as Charmed and Ally McBeal, it was the actor's controversial age-disparity romance with Dark Angel co-star Jessica Alba that got tongues wagging around Tinseltown back in 2001. He could be seen opposite Alba on that sci-fi program throughout its two-season run (2000-2001). Later, Weatherly portrayed actor Robert Wagner in the made-for-television drama The Mystery of Natalie Wood before revealing a deeply personal secret about his onscreen girlfriend in Her Minor Thing. In 2003, Weatherly landed his most regular television role to date, as a Naval criminal investigator on NCIS.

Trivia: Born in Chile but raised in Miami, actress Cote de Pablo developed an impressive resumé on both stage and screen. In 2001, she appeared in a New York City Public Theater production of Measure for Measure, and in 2005, she made her Broadway debut in The Mambo Kings. In 2006, she joined the cast of the series NCIS, playing Mossad operative Ziva David. She made her big-screen in the western The Last Rites of Ransom Pride.

Trivia: The seeming embodiment of the old cliché "tall, dark, and handsome," Israeli-born actor Oded Fehr has the worldly handsome looks that perfectly suited him for his breakthrough role of mysterious desert warrior Ardeth Bay in the 1999 blockbuster The Mummy. Born to European parents in Tel Aviv in November of 1970, Fehr served a three-year tenure in the Israeli Navy before relocating to Frankfurt, Germany, to work in business with his father. Enrolling in a few minor acting classes as a fluke, Fehr would take a role in playwright David Mamet's Sexual Perversity in Chicago before later deciding to cement his thespian tendencies with a three-year stay at the Bristol Old Vic in London. Not surprisingly taking on such stage roles as Don Juan in Don Juan Comes Back From War, Fehr was a familiar face to U.K. television audiences with his roles in The Knock and Killer Net in 1998 before his breakthrough in Hollywood. Also turning up as a male gigolo in SNL alumni Rob Schneider's Deuce Bigalow: Male Gigolo the following year, Fehr would later appear in American television with Cleopatra (1999) and Arabian Nights following his success in The Mummy. Not surprisingly returning to his role in that film's 2001 sequel, The Mummy Returns, the multi-lingual actor would become a permanent fixture on the small screen when he joined the cast of U.C. Undercover in 2001. Proving that his sense of humor was as healthy as his good looks, Fehr joined fellow Mummy cast member Arnold Vosloo in spoofing the film and its sequel at the 2001 MTV Movie Awards. Fehr's other television work include appearances on the WB's supernatural fan-favorite Charmed, in which he played a demon known as Zankou, and as the character of Farik on the Showtime drama Sleeper Cell (2005 -- 2006). In 2008, Fehr appeared in first-time writer/director Nancy Kissam's family drama Drool, while 2010 found the actor with a several guest appearances on USA's Covert Affairs.

Trivia: Versatile Great Britain-born actor Maxwell Caulfield has worked steadily on stage, television, and occasionally in film. Caufield got his start as a dancer in a London hotspot and moved to New York in the late '70s. He has appeared in productions on and off-Broadway. He made an inauspicious Hollywood debut in 1982 appearing with Michelle Pfeiffer in Grease 2. His subsequent films have been of varying quality.

Trivia: Los Angeles native Sasha Alexander honed her interest in acting with roles in school plays, but soon graduated to a professional career with roles on shortlived series like the drama Wasteland and the wild comedy Greg the Bunny, on which she shared an on-screen kiss with comedian Sarah Silverman. In 2003, Alexander took on the role of Agent Caitlin Todd on the series NCIS. She would play the role for many seasons to come, in addition to roles in movies like Yes Man and Love Happens, and other TV shows, like Rizzoli & Isles.

Trivia: Played clarinet in his high school band and sang in the choir. Theater debut was in a 1970 college production of Shakespeare's The Taming of the Shrew. Taught an acting class at the Georgia State Penitentiary in the early 1970s. Made his big-screen debut in the 1989 thriller Black Rainbow. Has had recurring roles as an inmate on Prison Break and a former Naval Criminal Investigative Service agent on NCIS.

Trivia: Grew up in Richmond, Virginia and danced professionally with the Richmond Ballet.Focused on French and Postcolonial works while studying Literature at Harvard University.Served as the publicity manager for the Hasty Pudding Theatricals in 2003.Is fluent in French.Appears in the music videos for Counting Crows' "You Can't Count on Me" and Bon Jovi's "What Do You Got?"

Trivia: After debuting as the friend of Winona Ryder's character in the sentimental weepie Autumn in New York (2000), actress Liza Lapira landed bit parts in Tony Scott's feature Domino (2005); guest appearances on such series as Grey's Anatomy, Monk, and Law & Order; and recurring roles on such shows as Huff, Law & Order: Special Victims Unit, and NCIS. In 2008, Lapira ascended to supporting billing with a plum role as MIT student-turned-gambler Kianna in Robert Luketic's thriller 21. In the years to come, Lapira would appear on shows like Dexter, Dollhouse, and Traffic Light, and in movies like Crazy, Stupid, Love.

Trivia: Lead actress, onscreen from the late '80s.

Trivia: Possessing a dark but earthy beauty and a natural, winning smile, actress Rena Sofer has found notable small-screen success in such series as Melrose Place, Just Shoot Me, and Coupling after spending the majority of the 1990s in an Emmy-winning role on the daytime soap opera General Hospital. As the millennium turned, so did Sofer's cinematic aspirations, with keen-eyed movie lovers spotting her in such feature efforts as Traffic (2000) and March (2001). An Arcadia, CA, native, Sofer relocated to Pittsburgh when her Orthodox Jewish rabbi father and psychology teacher mother divorced. Spotted by a New York talent agent at the age of 15, it wasn't long before Sofer was appearing on the daytime drama Loving and landing roles on such small-screen efforts as Herman's Head and Saved by the Bell: Hawaiian Style. In 1992, she made her big-screen debut with a small role in Sidney Lumet's A Stranger Among Us with Melanie Griffith. Beginning a four-year run on General Hospital in 1993, Sofer would simultaneously appear in numerous made-for-television features before beginning her year-long run on Melrose Place in 1998. She made a notable leap back to the big screen with a small role in the 2000 comedy Keeping the Faith, and after following up with Traffic, Sofer settled back into sitcom life with a high-profile guest-starring role on Ed. In the 2002 made-for television remake of Carrie, her part as a sympathetic high school teacher proved a highlight of the otherwise forgettable effort, and in 2003, she headed the cast of Coupling, the highly anticipated American remake of the popular U.K. sitcom.

Trivia: Actress Lindsay Price began her career when she was just a little girl, appearing in commercials including a Toys "R" Us ad in which she sang the toy store's famous jingle. Price eventually grew into a young woman, attending the Art Center College of Design in Pasadena, CA, but her interest in appearing onscreen only grew. She began making appearances on shows like Boy Meets World by the time she was 17 and two years later, in 1995, she scored a recurring role on the soap opera The Bold and the Beautiful. Then, in 1998, she joined the cast of the night-time drama Beverly Hills 90210, which was beginning its tenth season. She brought a new, fresh energy to the series, leading to a string of appearances over the next few years, including a starring role on the American remake of the British series Coupling, as well as roles on Pepper Dennis and Lipstick Jungle. In 2009 she was cast in the short-lived TV series Eastwick, based on the popular novel and film The Witches of Eastwick. After welcoming a son with chef Curtis Stone in 2011, Price slowed down her acting work, though she still appeared in occasional guest spots on shows like Two and a Half Men and Hawaii Five-0.

Trivia: Was raised by her single mother and lived alternately with her mother and grandmother. Acted in church events and community theatre before high school. /Looked to her mother and drama teacher, Miss Lillian Monkus, as role models. Was on the track team at school. Started to appear in adverts while studying at University of Illinois at Chicago, Illinois, United States. In 2002, moved to Los Angeles to further her career. Travelled to Johannesburg, South Africa, before filming Strike Back to learn hand-to-hand combat and various military techniques. Starred in the series, How to Get Away with Murder, 2016-2017.

Trivia: From the early '90s onward, African-American actress Paula Newsome built a fairly substantial career for herself via many small supporting roles in films and television series. She debuted on the big screen in 1992, as Ellen in Barnet Kellman's Dolly Parton comedy Straight Talk, then spent years making single-episode appearances in such programs as ER, Ally McBeal, and Law & Order, as well as multiple-episode runs on Chicago Hope, NYPD Blue, and The Lyon's Den. Newsome's career escalated most dramatically, however, between 2006 and 2007, with her contributions to the comedy Little Miss Sunshine (2006), the Adam Sandler drama Reign Over Me, the drama Things We Lost in the Fire, and the ABC detective series Women's Murder Club (as Claire Washburn, a member of an all-female team of investigators).

Trivia: While other students at Berkeley were weaving flowers in their hair and blowing weed, Joe Spano was laying the groundwork for an acting career. After establishing himself on the San Francisco theatrical scene, Spano began showing up on screen in such supporting roles as Vic in American Graffiti (1974) and Ace in Roadie (1980). From January 1981 through May 1987, Spano could be seen on a weekly basis as Henry Goldblume, the bespectacled and bowtied community affairs officer on the TV series Hill Street Blues. In 1992, Joe Spano made his Broadway debut in a revival of Arthur Miller's The Price.

Trivia: Made her Broadway debut at age 8 in How the Grinch Stole Christmas. Also appeared on Broadway in Billy Elliot and Mary Poppins. Is an experienced equestrienne. Supports the ASPCA and PETA. Has appeared in commercials for Microsoft, Burger King, Sprint and AOL. Studied ballet, jazz, lyrical and tap dance.

Trivia: American actress Lauren Holly has herself admitted that turning down the female lead in the Jim Carrey vehicle Ace Ventura, Pet Detective (1994) may not have been the wisest career move. Holly was acting on instinct, having co-starred with another highly individual comedian, Andrew Dice Clay, in 1990's forgettable The Adventures of Ford Fairlane. But when profits from Ace Ventura soared, Lauren was more than willing to sign on for the subsequent Carrey vehicle, Dumb and Dumber (1995), during the filming of which she and Carrey became an item. The actress has kept busy ever since her first important TV role as Betty in Archie: To Riverdale and Back Again (1990) and a stint on the ABC soap opera All My Children. Prior to her recent film success, Holly was perhaps best known for her role as Deputy Maxine Stewart on the CBS drama Picket Fences .In 1995 the actress played a doctor in Sydney Pollack's remake of Sabrina, and went a different direction in 1996's comedy Down Periscope, in which she played Lieutenant Emily Lake. Holly took on a supporting role in Any Given Sunday (1999), a rousing sports drama from director Oliver Stone, and joined Mel Gibson and Helen Hunt to play a supporting role in 2000's romantic comedy What Women Want. The following year Holly would voice Chihiro's mother in the US rerelease of the acclaimed anime fantasy Spirited Away the following year, and from 2005 until 2008 became known for her role as Director Jenny Shepard on CBS' long-running police procedural NCIS. Holly voiced the character of Haulie on the Adventures of Chuck & Friends, an animated series for children in 2010, and continues to be active in film and television.