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 Anthony Heald Guest Star Navi Rawat Amita Ramanujan Guest Star Kate Norby Guest Star William O'Leary Guest Star Gibby Brand Guest Star Karl Calhoun Guest Star Amanda Carlin Guest Star John Lacy Guest Star Kristen Ariza Guest Star Richard Saxton Guest Star Anna Maganini Guest Star Mark Berry Guest Star Michele Graff Guest Star Lindsay Frame Guest Star James Sie Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer