Rob Morrow Senior Special Agent Don Eppes Actor David Krumholtz Prof. Charlie Eppes Actor Peter MacNicol Prof. Larry Fleinhardt Actor Judd Hirsch Alan Eppes Actor Sabrina Lloyd Actor Alimi Ballard Agent David Sinclair Actor Navi Rawat Amita Ramanujan Guest Star Robinne Lee Guest Star Michole Briana White Guest Star Gibby Brand Guest Star Vince Deadrick Sr. Guest Star James Leo Ryan Guest Star Susan Beaubian Guest Star Matthew Yang King Guest Star Dale Dickey Guest Star Melanie Lora Guest Star David Figlioli Guest Star Marcus Chait Guest Star Troy Argall Guest Star James Sie Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Liz Friedman Writer Martha Mitchell Director J. Miller Tobin Director David Von Ancken Director Paul Holohan Director Alex Zakrzewski Director Davis Guggenheim Director Lesli Linka Glatter Director Andrew Dettman Writer Cheryl Heuton Writer Ken Sanzel Writer Wendy West Writer Jeff Vlaming Writer Paris Barclay Director Tim Matheson Director Nicolas Falacci Writer