Trivia: The quiet yet dynamic screen presence of actor Joe Mantegna has made him one of the most powerful supporting actors in Hollywood. Born in Chicago, Mantegna made his acting debut in the 1969 production of Hair. He then joined Chicago's Organic Theatre Company. In 1978, he debuted on Broadway in Working; he also helped write Bleacher Bums, an award-winning play. Still, he did not become well-known until he played a recurring role on the TV show Soap. By 1983 he'd returned to Chicago, where he began working with playwright David Mamet. While playing the lead in Mamet's play Glengarry Glen Ross (1983), Mantegna won a Tony. When Mamet began making films, Mantegna became his actor of choice in works such as House of Games (1987) and Homicide (1991). Prior to that, the actor had played small roles in a number of other films. He also continues to play in a variety of movie genres, working with some of Hollywood's top directors. Mantegna turned producer in 1998 with the crime comedy Jerry and Tom. That trend continued on the small screen as Montenga produced such shows as Midway USA's Gun Stories, Shooting Gallery, and QuickBites, but it was his role as a regular on the CBS series Joan of Arcadia that really kept him in the public eye. Continually returning to his recurring role as Fat Tony on The Simpsons over the next decade, Montegna joined the cast of the hit television series Criminal Minds in 2007, and recieved an Emmy nomination for his performance in the successful mini-series The Starter Wife that same year.

Trivia: Versatile as well as tall, dark, and handsome, Thomas Gibson has moved easily between TV stardom and a varied movie career working with some of the industry's major names. Born and raised in Charleston, Gibson found his calling as a child, making his acting debut at age ten in children's theater productions. Though he attended the College of Charleston, Gibson relocated when he won a scholarship to New York's prestigious Juilliard School. After earning his B.F.A., Gibson made his professional New York theater debut in 1985. Gibson spent the rest of the 1980s doing theater, as well as branching out into television with two seasons on the daytime drama Another World and the TV movie Gore Vidal's Lincoln (1988).Gibson made the transition to films in style with a co-starring role opposite Tom Cruise and Nicole Kidman in Ron Howard's glossy Irish-American epic Far and Away (1992). Along with playing a bit part in Martin Scorsese's lush The Age of Innocence (1993), Gibson further distinguished himself that year with larger roles in the critically praised PBS miniseries Armistead Maupin's Tales of the City and French-Canadian director Denys Arcand's first English-language film, the contemporary drama Love and Human Remains (1993).Gibson subsequently appeared in the second part of Whit Stillman's preppy trilogy, Barcelona (1994), and in the indie Sleep With Me (1994), but he became better-known to TV audiences that year on the CBS hospital drama Chicago Hope. After three seasons on the show, Gibson became an even more prominent TV presence in 1997 when he was cast as the straight-laced husband Greg to Jenna Elfman's hippie Dharma on the ABC sitcom Dharma and Greg. In addition to the memorable role of Greg, Gibson would appear in a number of feature films, like Eyes Wide Shut, The Flintstones in Viva Rock Vegas, and Psycho Beach Party, as well as subsuquent TV series, like the the proceedural Criminal Minds.

Trivia: California-born Shemar Moore parlayed a successful modeling stint into an acting career that began in 1994 with a lead role on the soap opera The Young and the Restless. Moore played Malcolm Winters for eight years, and earned a Daytime Emmy for his performance in 2000. After leaving The Young and the Restless, Moore landed a role on the short-lived WB superhero series Birds of Prey. A prominent supporting role in the surprise hit Diary of a Mad Black Woman followed in 2005, and that same year, he was cast on the CBS drama Criminal Minds alongside Mandy Patinkin and Thomas Gibson. In 2007, Moore made headlines in the gossip rags for a DUI arrest. He would go on to star on the proceedural Criminal Minds.

Trivia: Las Vegas native Matthew Gray Gubler got his show-business start as a fashion model, working for designers like Tommy Hilfiger. After graduating from NYU's Tisch School of the Arts in 2002, Gubler appeared in his first feature film, playing one of the interns in The Life Aquatic with Steve Zissou in 2004. He soon followed that performance with a starring role in the series Criminal Minds, playing the young genius Dr. Spencer Reid. He also made a small appearance in the comedy RV before signing on to appear in The Great Buck Howard. He had a major supporting role in (500) Days of Summer, but has probably had his largest success voicing the part of Simon, the nerdy member of the rodent trio at the heart of three Alvin and the Chipmunks movies.

Trivia: Canadian-born A.J. Cook trained as a competitive dancer before beginning her acting career at age 17 in the children's TV series Goosebumps. She started out in small roles on made-for-TV dramas until her first big break as one of the blonde Lisbon sisters in The Virgin Suicides. She went on to a recurring role on Higher Ground, a Fox Family Channel series about teens in boot camp, where she played the love interest of fellow Canadian Hayden Christensen prior to his role of Anakin Skywalker in Star Wars: Episode II -- Attack of the Clones. After another TV movie and the snowboarding comedy Out Cold, Cook found her niche as a lead actress in horror movies with Ripper: Letter From Hell in 2001. She then headlined a number of other thrillers, including Wishmaster 3: Beyond the Gates of Hell, The House Next Door, and Final Destination 2. In 2005, she began her run in the series Criminal Minds, playing special agent Jennifer "JJ" Jareau. Cook took on a supporting role in the romantic comedy I'm Reed Fish in 2006, and starred in director Ron Satlof's comedy Misconceptions in 2008. The actress took another lead role in 2011 for Bringing Ashley Home, a docudrama following a woman (Cook) determined to find her sister when she suddenly goes missing. Cook returned to the horror genre in 2013, with Wer. A member of the Mormon church, Cook lives in Salt Lake City, UT, with her husband, Nathan Andersen.

Trivia: Like a lot of showbiz hopefuls, Kirsten Vangsness has had her share of day jobs. After paying the bills as a substitute teacher, child counselor, and dinner-theater actress, Vangsness found her big break when she was cast in a Pepsi commercial. Soon afterward, she scored the role of Penelope Garcia on the hit show Criminal Minds in 2004. She made her feature film debut in the thriller In My Sleep.

Trivia: Actress Paget Brewster got her first big break with a recurring role on Friends in 1997 playing Chandler's girlfriend Kathy. A regular stint on the most popular show on television was just the springboard that the actress needed to build up her resumé, and soon she was cast in the cult hit Andy Richter Controls the Universe and the Showtime series Huff. In 2006, she had a prominent role in the family comedy Unaccompanied Minors, and later that same year, she joined the cast of the series Criminal Minds. She has also, most notably, provided the voice of Birdgirl for the Adult Swim series Harvey Birdman, Attorney at Law.

Trivia: Is of Ecuadorian, Austrian and Norwegian descent. Wanted to be an actor after watching Bruce Lee movies. Got his big break with a recurring role in the short-lived 2007 sitcom The Winner. Has a Dan black belt in Tae Kwon Do.

Trivia: Though it's a typical trend for models to attempt acting careers in Hollywood, a close look at the career of British model-turned-actress Sienna Guillory reveals that she is anything but the "typical" case. Despite the fact that it was likely her role as a Hugo Boss girl that first got the talented and attractive blonde beauty noticed on U.S. shores, she had actually been acting long before embarking on a career as a model, and in fact, simply stumbled onto a career on the catwalks quite by accident. More content to be labeled an "actor" than a "star," the down-to-earth starlet no doubt possesses the kind of selflessness displayed by Charlize Theron in Monster that would allow her talent to take precedence over her physical appearance when the role demands it. The daughter of Cuban-born guitarist Isaac Guillory, Sienna was born in London in May of 1975; her childhood was marked by the kind of bohemian upbringing that encouraged creativity and artistic experimentation. It wasn't long before the ambitious youngster was considering a career as an actress, and in 1993, at the age of 16, Guillory landed her first role with a bit part in the cheeky, equestrian-themed U.K. miniseries Riders. Those who caught a brief glimpse of the up-and-coming talent no doubt agreed that the camera took a special shine to her, and a bit part in the U.K. period drama The Buccaneers following in short order. Guillory's appearance in The Buccaneers prompted her to study her craft more closely, but her course was somewhat altered when, at the age of 21, she accompanied a friend to the Select modeling agency and was immediately signed by the powerhouse. Though a stint as the Hugo Boss girl (not to mention campaigns for Armani and Dolce & Gabbana, to name only a few) did offer Guillory notable exposure, it did little to sway her dedication to acting, and she was soon honing her skills at the New World School of Dramatic Arts and later the Paris Conservatoire. By the time Guillory returned to the screen with a substantial role in the 2000 thriller Sorted, she had began to develop a unique style that would continue to impress in such features as Kiss Kiss (Bang Bang) and Late Night Shopping. A winning-turn as the virginal heroine of Kingsley Amis' novel A Girl Like You got Guillory positive critical notice when the television adaptation was aired in the U.K. in 2001, and it wasn't long before she had set her sights on Hollywood. If Guillory's turn as the romantic interest of lead Guy Pearce's character in the 2002 sci-fi adventure The Time Machine did little to further her career when the film generally failed to live up to expectations at the box office, she could at least take comfort in the fact that she would soon be portraying one of the most legendary beauties of all in the made-for-television adventure Helen of Troy. That film, too, was met with a somewhat lukewarm response, and though she would remain decidedly loyal to British television with roles in such efforts as 2004's Beauty, it was obvious by parts in such movies as Love Actually and Resident Evil: Apocalypse that she was eager to expand her horizons beyond typical costume drama fare and into mainstream Hollywood territory. In 2004, Guillory began preparation for roles in the fraternity-themed horror film Victims and director Keoni Waxman's Poolhall Prophets.

Trivia: Was president of his high-school class. Sang backup for The Young Rascals pop group in the 1960s. Became a New York City fireman in 1977 to support his pursuit of an acting career. Made his feature-film debut in 1985's Turk 182, playing a firefighter. Is a colon-cancer survivor and supports several cancer-research organizations.

Trivia: Erik Palladino was supposed to join the family's heat contracting business. Raised in Yonkers by his schoolteacher mother and contractor father, the 12-year-old Palladino caught the acting bug from Robert De Niro's famed performance as Jake La Motta in Raging Bull. He quickly joined a local children's repertory company and soon began hosting a heavy metal television show in New York. But like many actors, the adult Palladino took the long road to success. He built an arrest record, struggled through New York's Marymount Manhattan College, sang in a mediocre indie rock band, and survived several canceled television shows. By the late '90s, Palladino had a familiar face -- as a regular on Comedy Central, a voluble MTV video jockey, an indolent stepson on Murphy Brown, and Jennifer Love Hewitt's unctuous cousin in Can't Hardly Wait (1998) -- but not a well-known name. However, perseverance and ubiquity will lead to stardom and, in 1999, Palladino scored two plum roles: the part of an American sailor opposite Matthew McConaughey in U-571 and a coveted slot as Dr. Dave Malucci on NBC's top-rated ER. Both characters are Italian-American; both characters pigeonhole Palladino as the insolent, self-important bastard. Yet, his performances project the strength of an actor who has been around the bend and can create brazen men that are not simply ogres, but refreshingly forthright, occasionally tender, and always heroic. Despite a public outcry and an Internet petition to keep him on the show, Palladino left ER in 2001. He then added to his movie credits -- which already included This Space Between Us (2000) with fellow ER star Alex Kingston and Finder's Fee (2000) with James Earl Jones -- by starring in the "Disco Inferno" segment of the VH1' Strange Frequency (2001). He also began racing cars in the Toyota Pro/Celebrity Race of the Toyota Grand Prix of Long Beach. Though his career forced him to relocate to California, Palladino remains a die-hard New Yorker and a loyal Yankees fan.

Trivia: Latino actor and heartthrob Adam Rodriguez found a convenient backdoor to Hollywood success. Proving definitively the old adage that "it's all in who you know," Rodriguez's dad, the longtime COO of the U.S. Hispanic Chamber of Commerce, happened to be watching the Emmys in 1996 and recognized an old army buddy accepting a production award. The gentleman in question had graduated from policeman to NYPD Blue consultant to one of the program's producers. The elder Rodriguez impulsively phoned his pal to congratulate him on the award; this led to a renewed friendship, and in time, a small guest spot for Adam on NYPD Blue. At that point, Rodriguez had only just decided on his true calling in life. A stint of seemingly random occupations (including stockbroker and bellhop) followed by a brief theatrical tenure at the Jersey Peppermill Playhouse convinced the young man that his passion lay in acting. The Emmy incident, as it were, happened almost immediately afterward.A recurring role on the brief series drama Brooklyn South ensued, followed by a guest spot on Law & Order, then a bit part in the Gary Fleder movie Impostor. Rodriguez attained his first substantial recognition, however, as Jesse Ramirez, an erudite attorney unknowingly saddled with an extraterrestrial girlfriend, on the sci-fi series Roswell. But his greatest exposure was still yet to come. Beginning in 2002, he played Eric Delko, drug and fingerprint expert at the Miami-Dade crime laboratory, on CSI: Miami, the first successful spin-off to the crime series phenomenon CSI: Crime Scene Investigation. Shortly thereafter, Rodriguez also signed for a part in Jessica Kavana Dornbusch's indie coming-of-age drama Thanks to Gravity (2005), about the trials and travails of a young woman of Jewish-Hispanic ancestry enrolled at Harvard. Numerous film roles followed, and on the heels of an appearance in Tyler Perry's I Can Do Bad All By Myself Rodriguez turned up in Ugly Betty as Hilda's on again-off again flame Bobby Talercio. In 2012 the chisled actor could be seen opposite Channing Tatum in Steven Soderbergh's Magic Mike.

Trivia: Model-turned-actress Rachel Nichols began a plush and lucrative career as one of America's most sought-after cover girls during her late teens and early twenties, then transitioned fluidly from modeling into acting. During her early film career, producers took great advantage of Nichols' appearance, casting her as glamorous eye candy in films such as the 2000 Autumn in New York (at age 19), Dumb and Dumberer (2003), Shopgirl (2005), and The Amityville Horror (2005). In addition to her film work, Nichols also made a splash on the small screen, starting with a guest role on on the popular cable comedy Sex and the City (2002), in which she played an alluring hostess at a chic restaurant, whom Samantha (Kim Cattrall) has a threesome with, along with her boyfriend. A few years later, Nichols starred in the shortlived FBI drama The Inside (2005), as Special Agent Rebecca Locke, the survivor of a kidnapping by a brutal serial killer, who used her disturbing experience to her advantage in profiling other murderers. After that series folded, she quickly followed it up by joining the cast of the popular spy drama Alias, as CIA agent Rachel Gibson, during its last season. Nichols ascended to lead status on the big screen and essayed a second outing as a scream queen in the thriller P2 (2007) -- playing a young woman unwittingly kidnapped and tormented by a maniac one fateful Christmas Eve.

Trivia: Born September 18th, 1970, actress, comedian, author, reality-show host, and occasional scriptwriter Aisha Tyler came of age in San Francisco and studied poly sci at Dartmouth College before mounting a (brief) career as an advertising executive in her hometown. Dissatisfied by this pursuit, and pining to launch herself as a full-time entertainer, Tyler "dropped out" of the corporate world and hit the road with a solo standup comedy act in the mid-'90s.Around 2001 -- after five years in Los Angeles with occasional standup bookings and concomitantly limited acclaim and recognition -- Tyler landed two huge breaks, first as the host of the irreverent Talk Soup during that program's final year (a position she inherited from Greg Kinnear, John Henson, and others), and then as the primary host of the dating series The 5th Wheel. Riding the crest of popularity generated by reality television during the first several years of the millennium, Wheel coupled the unscripted spontaneity of The Real World and Survivor with the format of the dating series Blind Date. Its premise involved setting two couples up on blind dates, having them "swap" partners, and adding an unforeseen fifth member (the "wheel" of the title) to stir things up and add provocation. The program placed a greater emphasis on erotic and suggestive content than Blind and -- perhaps as a result -- it unsurprisingly became a massive, runaway hit.The ever-ambitious Tyler, however, continued to expand her horizons. She maintained a short tenure with Wheel and quickly moved on to other endeavors, placing a particularly strong emphasis on television work. This included a stint as Charlie (the only recurring African-American cast member) in the final two seasons of the popular sitcom Friends, and a recurring role as covert terrorist Marianne Taylor on the weekly suspenser 24. Tyler also portrayed attorney Andrea Moreno (who dies in a car crash but is then "ushered" over to the other side by Jennifer Love Hewitt's psychic) in the first season (2005-2006) of the supernatural drama The Ghost Whisperer. After that, Tyler segued into feature-film work, with bit roles in such pictures as The Santa Clause 3 and .45.Six feet tall and one of the most physically breathtaking young actresses of her generation, Tyler frequently provides beauty tips in such magazines as Ebony and Glamour; she is also an outspoken proponent of physical fitness and a strenuous exerciser who pushes herself to an almost unimaginable degree. A February 2007 issue of In Style magazine reported, "In addition to scaling walls, Tyler runs, uses a rowing machine, lifts weights, snowboards and scuba dives. But for her, nothing beats the mental rush of rock climbing." In 2004, Tyler also authored and published the best-seller Swerve: Reckless Observations of a Postmodern Girl, a free-form, witty expostulation on such "hot" topics as men, bikini waxing, reality television, dating wars, sex, and body image.After filming several unremarkable movies throughout the mid-2000s, the actress found success on Archer, a television series that features Tyler as a dedicated but deadly agent for ISIS, a secret intelligence unit in New York City. While she continued work on Archer, she landed the job of co-host on The Talk, and later, host of the revamped Whose Line Is It Anyway? As if that weren't enough, Tyler also landed a recurring role on Criminal Minds in 2015.

Trivia: Studied conducting under David Zinman and Murry Sidlin at Aspen Music Festival and under Leonard Slatkin at the National Conducting Institute in Washington, D.C. Appointed an American Conducting Fellow of the Houston Symphony in 2004, and an assistant conductor of Kansas City Symphony in 2006. Has been a guest conductor at many orchestras, including Cleveland Orchestra, National Symphony Orchestra, Detroit Symphony, Baltimore Symphony, Monte Carlo Philharmonic, and NHK Orchestra of Tokyo. Made his Broadway acting debut in the play Clybourne Park in 2012.

Trivia: Launching her performing career in her native Tulsa, Jeanne Tripplehorn spent several years as a local radio DJ and TV host. Educated at both the University of Oklahoma and Juilliard, Born June 10th, 1963, Tripplehorn was first seen on a nationwide basis in 1991 in a supporting role in the made-for-TV movie The Perfect Tribute, a fictionalized retelling of the events leading up to Lincoln's Gettysburg Address. Many of Tripplehorn's film characterizations have ranged from mildly eccentric to deeply disturbed, thanks in great part to her breakthrough appearance as Michael Douglas' "rough sex" partner in the erotic chiller Basic Instinct (1992). She got a chance to play normal -- albeit frazzled -- as Hugh Grant's fiancée in the romantic comedy Mickey Blue Eyes (1999); in 2000, she returned to rougher territory as a lesbian gangster in Mike Figgis' experimental ensemble film Timecode. In 2006 Tripplehorn found success on the small screen for her role as Barb Henrickson, a devout Mormon who often struggles with her polygamous lifestyle, in the HBO drama series Big Love.

Trivia: His mother was born in South Korea, but adopted by an American family when she was an infant. Began modeling internationally in 2001. Moved to South Korea to break into acting, despite not speaking the language. Did a series of commercials for Bean Pole, a South Korean fashion brand, with Gwyneth Paltrow in 2005. Became a huge star in South Korea after landing the series My Lovely Sam Soom. Signed with DNA Models in New York City.

Trivia: Of Jewish and Italian descent.Had her first acting role when she was 25.Won a Drama-Logue Award for Best Actress for her work in Demonology at the Mark Taper Forum.Her father, Robert Glaudini, played the father of her character Dolores Mayo on NYPD Blue.Moved back to New York after leaving Criminal Minds.In 2000, was named one of Entertainment Weekly's 100 Most Creative People on Entertainment.