Chris O' Donnell was born on June 26th, 1970. He is the youngest child in his family with four sisters and two brothers. He first started modeling at the age of thirteen and continued until the age of sixteen, when he appeared in commercials. When he was seventeen, he was preparing to stop acting and modeling, but was asked to audition for what would be his first film, Men Don't Leave (1990). He didn't want to go to the audition, but his mother bribed him by saying she would buy him a new car if he went and he duly got the role. Ever since that moment in his life, Chris has appeared in some major motion pictures including Fried Green Tomatoes (1991), Scent of a Woman (1992), Mad Love (1995), Vertical Limit (2000) and Kinsey (2004). Chris took time off from acting to spend time with his wife, Caroline, son, Chris Jr., and his daughter Lilly. He also spent two months in New York performing in Arthur Miller's "The Man Who Had All the Luck".

Chris O'Donnell plays as G. Callen in NCIS: Los Angeles.
Chris O'Donnell is the top #1 member of the cast and appears in 271 episodes.

Daniela Ruah plays as Kensi Blye in NCIS: Los Angeles.
Daniela Ruah is the top #2 member of the cast and appears in 271 episodes.

​Linda Hunt (born April 2, 1945) is an American film, stage and television actress. She is perhaps best known for her Academy Award-winning role in 1982's The Year of Living Dangerously. She is currently portraying the role of Henrietta "Hetty" Lange, Office of Special Projects Operations Manager on the CBS Television series NCIS: Los Angeles.

Linda Hunt plays as Henrietta "Hetty" Lange in NCIS: Los Angeles.
Linda Hunt is the top #3 member of the cast and appears in 271 episodes.

Barrett Foa is a series regular on the hit CBS drama, NCIS: Los Angeles (2009). He plays tech operator/surfer "Eric Beale" alongside Chris O'Donnell, LL Cool J and Oscar winner Linda Hunt. Since moving to Los Angeles in January 2009, Foa has been a recurring guest on Entourage (2004) (as Ari's assistant), and the original NCIS: Naval Criminal Investigative Service (2003) and guest-starred on Numb3rs (2005) and The Closer (2005) opposite Kyra Sedgwick. On Broadway, Foa starred as the leads of both "Avenue Q" (Princeton and Rod) and The 25th Annual Putnam County Spelling Bee (Leaf Coneybear), and was in the original Broadway cast of "Mamma Mia!". He can be heard as "Jesus" on the 20th anniversary cast recording of "Godspell". He has played leading roles at Playwrights Horizons (where he starred in the world premiere of Adam Bock's play, "The Drunken City", a piece he helped workshop and develop), The Public Theatre, New York Theatre Workshop, The York, and John Houseman, as well as at such reputable regional venues as Hartford Stage and The Shakespeare Theatre, D.C. (starring as "Claudio" in William Shakespeare 's "Much Ado About Nothing"), Bay Street Theatre (starring opposite playwright Charles Busch), Paper Mill Playhouse, TheatreWorks in CA, The St. Louis MUNY, North Shore Music Theatre, Pittsburgh Civic Light Opera, Music Theatre of Wichita, Weston Playhouse, and Maine State Music Theatre. Born and raised in New York City, Foa graduated from The Dalton School on Manhattan's Upper East Side. He attended Interlochen Arts Camp for four summers, spent a semester of college at the Royal Academy of Dramatic Arts, and received his Bachelor of Fine Arts from one of the nation's top musical theatre programs, The University of Michigan in Ann Arbor. He resides in Los Angeles.

Barrett Foa plays as Eric Beal in NCIS: Los Angeles.
Barrett Foa is the top #4 member of the cast and appears in 271 episodes.

Eric Christian Olsen (born May 31, 1977) is an American actor.

Eric Christian Olsen plays as Marty Deeks in NCIS: Los Angeles.
Eric Christian Olsen is the top #5 member of the cast and appears in 247 episodes.

Renée Felice Smith is an actress and director, known for NCIS: Los Angeles (2009), Detachment (2011) and Code Academy (2014).

Renée Felice Smith plays as Nell Jones in NCIS: Los Angeles.
Renée Felice Smith is the top #6 member of the cast and appears in 247 episodes.

Miguel Ferrer (1955–2017) was an American actor and voice actor mostly known for villainous roles.

Miguel Ferrer plays as Owen Granger in NCIS: Los Angeles.
Miguel Ferrer is the top #7 member of the cast and appears in 144 episodes.

Nia Long (born October 30, 1970) is an American actress and occasional music video director. She is best known for her roles in the television series The Fresh Prince of Bel-Air and Third Watch, and the films Soul Food, Love Jones, The Best Man, Big Momma's House, and Are We There Yet?   Long was born in Brooklyn, New York, U.S. Her family is of Afro-Trinidadian descent. Her name, Nia, is one of the seven days of Kwanzaa, which means purpose in Swahili. Long's parents divorced when she was two years old, and she and her mother moved to Iowa City, Iowa. They subsequently moved to a South Los Angeles neighborhood when Long was seven. Long's father currently resides in Trenton, New Jersey. Long's half-sister is comedienne Sommore, one of the stars of The Queens of Comedy. She attended the Roman Catholic school St. Mary's Academy and studied ballet, tap, jazz, gymnastics, guitar, and acting. She graduated from WestchesterHigh School in 1989. Long's acting coach was Betty Bridges, better known as the mother of Diff'rent Strokes star Todd Bridges. Her earliest role was in the Disney television movie, The B.R.A.T Patrol alongside Sean Astin, Tim Thomerson and Brian Keith. Her first notable role on television was a three-year contract role as Kathryn "Kat" Speakes on the soap opera Guiding Light. Long portrayed Kat from 1991 to 1994, then f rom 1994 - 1995, she played Will Smith's girlfriend and fiancée Beulah "Lisa" Wilkes on The Fresh Prince of Bel Air. In 2003, she joined the cast of the drama Third Watch, where she played NYPD Officer Sasha Monroe, continuing until the series finale in 2005. In 2005 and 2006, Long appeared on Everwood, and appeared on Boston Legal during its 2006-2007 season. Long also starred in Big Shots from 2007-2008 alongside Michael Vartan and Dylan McDermott. She also made a guest appearance on the successful sitcom Living Single during its first season. Long appeared in supporting roles in a number of movies including, Boyz n the Hood, Friday, and Made in America. She played a leading role, or a member of the primary ensemble, in several films, including Soul Food, Love Jones, Boiler Room, Big Momma's House, Are We There Yet?, and The Best Man. Ice Cube has starred with her in four films, while (fellow Westchester High alum) Regina King has starred with her in two. Long was voted one of the 50 most beautiful people in the World in 2000 by People. She won a NAACP Image Award for Outstanding Actress in a Drama Series in 2004 for her performance on Third Watch.   In addition to her film credits, she directed Yolanda Adams's music video for "This Too Shall Pass" and co-directed and appeared in Ashanti's music video, "Baby". She also appears in the video for Kanye West's, "Touch The Sky". Long and her former long-time boyfriend and fellow actor Massai Z. Dorsey have a son, Massai Zhivago Dorsey II, born on November 26, 2000.

Nia Long plays as Shay Mosley in NCIS: Los Angeles.
Nia Long is the top #8 member of the cast and appears in 48 episodes.

Peter was born in Houston, TX. He attended college at Wesleyan University in Connecticut where he received a B.A. in English. Peter then moved to New York to pursue a career in acting. After two years in New York, he was accepted by The American Repertory Theatre's Institute for Advanced Theatre Training at Harvard University and the Moscow Art Theatre, where he received an M.F.A in Acting. Shortly after receiving his M.F.A., Peter was cast in the Mark Taper Forum's production of The Cherry Orchard starring Annette Bening and Alfred Molina in 2006. During the production, a producer asked him to come and audition for the pilot of ABC's Notes from the Underbelly, in which he was cast starring opposite Jennifer Westfeldt. The series was picked up that summer, and ran on ABC for two seasons. Peter was next cast in CBS's drama NCIS:Los Angeles as Operations Psychologist Nate Getz. He still appears as Nate as a recurring cast member. Peter recently starred in the TBS comedy Wedding Band which aired in the fall of 2012. He just wrapped up shooting the NBC pilot Assistance starring Krysten Ritter, Alfred Molina, Zach Cregger, and Vinette Robinson.

Peter Cambor plays as Nate Getz in NCIS: Los Angeles.
Peter Cambor is the top #9 member of the cast and appears in 24 episodes.

Adam Jamal Craig plays as Dominic Vail in NCIS: Los Angeles.
Adam Jamal Craig is the top #10 member of the cast and appears in 24 episodes.