Main Cast and Core Roles
Criminal Minds centers on the FBI's Behavioral Analysis Unit. The core team includes Aaron Hotchner, played by Thomas Gibson, who leads the unit. Derek Morgan, portrayed by Shemar Moore, is the team's profiler and former undercover specialist. Spencer Reid, acted by Matthew Gray Gubler, is the genius technical analyst with an eidetic memory.
Key Recurring and Supporting Characters
Jennifer "JJ" Jareau, played by Aisha Tyler, serves as the team's liaison and later returns to the BAU. Penelope Garcia, portrayed by Kirsten Vangsness, is the eccentric technical analyst and media coordinator. David Rossi, acted by Joe Mantegna, is a veteran profiler who joins the team and becomes a central figure across multiple seasons.
Cast Changes and Longevity
The series ran for 15 seasons on CBS, with several cast changes over time. Thomas Gibson departed the show in season 12, and Shemar Moore left after season 11. The ensemble cast structure allowed the series to introduce new agents while maintaining continuity with core characters.
For a full list of actors and characters, visit the Criminal Minds Wikipedia page.
