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: 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: 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: The comely blonde supporting actress Diane Neal is best known for her ongoing portrayal of District Attorney Casey Novak on the blockbuster series Law & Order: Special Victims Unit. Her resumé also includes appearances in such direct-to-video exploitationers as Dracula II: Ascension and Dracula III: Legacy.

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

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

Trivia: With a countenance that seemed to express street-smart grit, Hispanic-American actor Rick Gonzalez might have easily fallen into the trap of playing toughs time and again, as did many of his contemporaries. With an exception here and there, Gonzalez defied these expectations in the first several years of his career, racking up small roles in laudably unpredictable projects such as the wonderful Disney sports drama The Rookie (2002), the dance-themed comedy drama Roll Bounce (2005), and the Christopher Guest mockumentary For Your Consideration (as "Chillaxin' Host"). Born in Manhattan, Gonzalez reportedly sought out stardom from a very tender age, and made his cinematic debut in 1999, with a bit part in the movie Mambo Café. A steady stream of supporting turns followed over the next several years, with an average of two or three per year; Gonzalez hit a high point when he played the womanizing Primo in the coming-of-age drama Biker Boyz, starring Larry Fishburne and Luke Wilson. Gonzalez teamed with Steven Spielberg for a supporting role in the helmer's colossal sci-fi opus War of the Worlds (2005), and shifted gears slightly -- to the thriller genre -- for the movies Pulse and Illegal Tender. The latter gave Gonzalez his first major lead; in that film, he played a Latino man fleeing from thugs who murdered his dad.On television, the actor first made viewers take notice when he played a student with a troubled family life on the David E. Kelley series Boston Legal. He went on to make one-episode appearances in such popular shows as ER, Buffy the Vampire Slayer, and The Shield, but it wasn't until 2007's Reaper that he scored a regular small-screen role. On that quirky comedy drama, Gonzalez played slacker Ben, a friend of lead character and supernatural bounty hunter Sam Oliver (Bret Harrison).

Trivia: Lead actor, onscreen from the '80s.

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: 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: 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: 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: Is of Indian descent.In 2009, he made his debut as an actor on television. Made his debut as an actor on the big screen in 2016 .Lived with co-star Michael Vlamis during season 1 of Roswell, New Mexico.In 2020, he used his social media to raise awareness of civic engagement and promote voting.