Cheryl Heuton Creator, Executive Producer Nicolas Falacci Creator, Executive Producer Rob Morrow Senior Special Agent Don Eppes Actor David Krumholtz Prof. Charlie Eppes Actor Judd Hirsch Alan Eppes Actor Alimi Ballard Agent David Sinclair Actor Navi Rawat Amita Ramanujan Actor Dylan Bruno Agent Colby Granger Actor Sophina Brown Nikki Betancourt Actor Aya Sumika Special Agent Liz Warner Actor Peter MacNicol Prof. Larry Fleinhardt Actor Tim Guinee Glen Olin Guest Star Stephanie Childers Nancy Olin Guest Star Sarah Rafferty Margo Guest Star Jason Antoon Kai Kragen Guest Star Jeffrey Hutchinson Guest Star Amy Hill Guest Star Antonio Elias Guest Star Dan Martin Detective Cates Guest Star Todd Weeks Guest Star Michael Hartson Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Don McGill Writer, Executive Producer Alex Zakrzewski Director Andrew Dettmann Executive Producer Ken Sanzel Executive Producer David W. Zucker Executive Producer