Matthew Gray Gubler (born March 9, 1980) is an American actor, director, fashion model and painter. He is best known for his role as criminal profiler Dr. Spencer Reid in the CBS television show Criminal Minds (2005–present), of which he has also directed ten episodes. Gubler has appeared in The Life Aquatic with Steve Zissou, (500) Days of Summer, Life After Beth, Suburban Gothic, and as the voice of Simon in Alvin and the Chipmunks and its three sequels. Description above from the Wikipedia article Matthew Gray Gubler, licensed under CC-BY-SA,full list of contributors on Wikipedia.

Matthew Gray Gubler plays as Spencer Reid in Criminal Minds.
Matthew Gray Gubler is the top #1 member of the cast and appears in 324 episodes.

Andrea Joy "A.J." Cook (born July 22, 1978) is a Canadian actress best known for her role as Supervisory Special Agent Jennifer "JJ" Jareau in the CBS crime drama Criminal Minds. She has also appeared in several Hollywood films including The Virgin Suicides, Out Cold, and Final Destination 2. Cook was born in Oshawa, Ontario, and spent most of her life growing up in Whitby, where she attended Anderson Collegiate Vocational Institute. Her father, Mike, is a teacher, and her mother, Sandra, works as a psychiatrist.She has three siblings, Nathan, Paul, and Angela. Cook is a member of The Church of Jesus Christ of Latter-day Saints.A dancer from age four,Cook began taking jazz, tap and ballet lessons. She danced competitively for many years, before deciding at the age of 16 that she wanted to try acting. On August 3, 2001, Cook married her long-time boyfriend, Nathan Andersen, whom she met in a film class at Utah Valley University. She later moved to Salt Lake City, Utahto be with him and currently resides in Los Angeles, California.In March 2008, it was reported that Cook and Andersen would be expecting their first child in October.Their son, Mekhai Allan Andersen, was born on September 13, 2008. Cook said "He's such a good baby. I feel so lucky that he's mine. My husband and I feel very blessed!"Mekhai made a brief appearance as Henry LaMontagne in Criminal Minds in Season 5 when Cook's character Jennifer Jareau was in a pharmacy buying children's medicine which leads to a breakthrough in the case the BAU was currently trying to solve.[13] He reprised the role of Henry in the Criminal Minds two-hour season seven finale in 2012. Cook and Andersen are also the owners of a Yorkshire Terrier named Zara.Cook was considered legally blind at an early age because of a severe astigmatism, but wore contacts to correct her vision. She eventually underwent surgery where a lens implant was used to correct the impairment.Cook is best friends with actress Meghan Ory. Description above from the Wikipedia article A. J. Cook (actress), licensed under CC-BY-SA, full list of contributors on Wikipedia.

A.J. Cook plays as Jennifer Jareau in Criminal Minds.
A.J. Cook is the top #2 member of the cast and appears in 310 episodes.

Kirsten Simone Vangsness (born July 7, 1972) is an American actress. She graduated from Cerritos High School in Cerritos, California in June 1990. She is currently appearing on the CBS drama series Criminal Minds as FBI Technical Analyst Penelope Garcia, as well as the spin-off, Criminal Minds: Suspect Behavior, which premiered on February 16, 2011. Description above from the Wikipedia article Kirsten Vangsness, licensed under CC-BY-SA,full list of contributors on Wikipedia.

Kirsten Vangsness plays as Penelope Garcia in Criminal Minds.
Kirsten Vangsness is the top #3 member of the cast and appears in 289 episodes.

​From Wikipedia, the free encyclopedia Joseph Anthony “Joe” Mantegna, Jr. (born November 13, 1947) is an American actor, producer, writer and director. He is best known for his roles in box-office hits such as Three Amigos (1986), The Godfather Part III (1990), Forget Paris (1995) and Up Close & Personal (1996). He currently stars in the CBS television series Criminal Minds as FBI Special Agent David Rossi. Mantegna has gained Emmy Award nominations for his roles in three different miniseries, The Last Don (1997), The Rat Pack (1999) and The Starter Wife (2007). Mantegna served as executive producer for various movies and television movies, such as Corduroy (1984), Hoods (1998), and Lakeboat (2000), which he also directed. On television, Mantegna starred in the short lived series First Monday (2002) and Joan of Arcadia (2003–2005). Since the 1991 episode "Bart the Murderer", Mantegna has had a recurring role on the animated comedy series The Simpsons as mob boss Fat Tony, reprising the role in The Simpsons Movie (2007). He also played Robert B. Parker's fictional detective Spenser in three made-for-TV movies between 1999 and 2001. Description above from the Wikipedia article Joe Mantegna, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Joe Mantegna plays as David Rossi in Criminal Minds.
Joe Mantegna is the top #4 member of the cast and appears in 269 episodes.

Shemar Franklin Moore (born April 20, 1970) is an actor, producer, and former fashion model. His notable roles include Malcolm Winters on The Young and the Restless, Derek Morgan on Criminal Minds, and the lead role of Hondo on S.W.A.T. all on CBS. Moore was also the third permanent host of Soul Train, from 1999 to 2003. He also starred in films including Diary of a Mad Black Woman and The Brothers. He also voiced Victor Stone aka Cyborg in multiple Justice League cartoons.

Shemar Moore plays as Derek Morgan in Criminal Minds.
Shemar Moore is the top #5 member of the cast and appears in 255 episodes.

Thomas Ellis Gibson (born July 3, 1962) is an American actor and director. He portrayed Daniel Nyland in the CBS series Chicago Hope, Greg Montgomery on the ABC series Dharma & Greg, and Aaron Hotchner on the CBS series Criminal Minds (2005–2016).

Thomas Gibson plays as Aaron Hotchner in Criminal Minds.
Thomas Gibson is the top #6 member of the cast and appears in 255 episodes.

Paget Valerie Brewster, born March 10, 1969, is an American actress and singer. She was first recognized for her recurring role as Kathy on the fourth season of the NBC sitcom Friends. Her breakthrough role came as FBI Supervisory Special Agent Emily Prentiss on the crime drama Criminal Minds, on which she appeared regularly from 2006 to 2012, and then returned to for guest appearances, before returning regularly in 2016. Her other roles include voicing Elise and Mr. Mumbles on Dan Vs., Frankie Dart on the final season of Community, the voice of Birdgirl in Harvey Birdman, Attorney at Law, Sara Kingsley on the Fox sitcom Grandfathered, and voicing Donald Duck's twin sister Della in the 2017 series of DuckTales, marking the first animated appearance of the character. ​From Wikipedia, the free encyclopedia

Paget Brewster plays as Emily Prentiss in Criminal Minds.
Paget Brewster is the top #7 member of the cast and appears in 196 episodes.

Aisha N. Tyler (born September 18, 1970) is an American actress, stand-up comedian, and author, known for her regular role in the first season of Ghost Whisperer and voicing Lana Kane in Archer, as well as her recurring roles in Friends, CSI: Crime Scene Investigation and Talk Soup. Description above from the Wikipedia article Aisha Tyler, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Aisha Tyler plays as Tara Lewis in Criminal Minds.
Aisha Tyler is the top #8 member of the cast and appears in 79 episodes.

Adam Michael Rodriguez (born April 2, 1975) is an American actor, screenwriter and director. He became known for his role as Eric Delko on CSI: Miami. He portrayed Task Force Agent Luke Alvez on Criminal Minds and Tito in the Magic Mike film series.

Adam Rodríguez plays as Luke Alvez in Criminal Minds.
Adam Rodríguez is the top #9 member of the cast and appears in 79 episodes.

From Wikipedia, the free encyclopedia. Jeanne Marie Tripplehorn is an American actress. She began her career in theatre, acting in several plays throughout the early 1990s, including Anton Chekov's Three Sisters on Broadway. Her film career began with the role of a police psychologist in the erotic thriller Basic Instinct (1992). Her other film roles include The Firm (1993), Waterworld (1995) and Sliding Doors (1998). On television, she starred as Barbara Henrickson on the HBO drama series Big Love (2006–11) and as Dr. Alex Blake on the CBS police drama Criminal Minds (2012–14), and she received a Primetime Emmy Award nomination for her performance as Jacqueline Kennedy Onassis in the 2009 HBO movie Grey Gardens.

Jeanne Tripplehorn plays as Alex Blake in Criminal Minds.
Jeanne Tripplehorn is the top #10 member of the cast and appears in 48 episodes.