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 David Hunt Guest Star Gibby Brand Guest Star Alyson Reed Guest Star James Immekus Guest Star Michael Bryan French Guest Star Margot Rose Guest Star Douglas Sills Guest Star Devon Michaels Guest Star James Joseph O'Neil Guest Star James Martin Kelly Guest Star Robert Joseph Guest Star David Grant Wright Guest Star Derek Anthony Guest Star Joey Adams Guest Star Annika Peterson Guest Star Mitchell Edmonds Guest Star Christopher Fairbanks Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Liz Friedman Writer Tim Matheson Director