Nicolas Falacci Creator Cheryl Heuton Creator 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 Alimi Ballard Agent David Sinclair Actor Diane Farr Agent Megan Reeves Actor Dylan Bruno Agent Colby Granger Actor Navi Rawat Amita Ramanujan Actor Lou Diamond Phillips Agent Ian Edgerton Guest Star Kim Dickens Crystal Hoyle Guest Star David Gallagher Buck Winters Guest Star Jerry O'Donnell Pierce Brenner Guest Star Andy Mackenzie Felix Guest Star Colin R. Campbell Meth Chemist #1 Guest Star Georgia Hatzis Lydia Campos Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Barry Schindel Executive Producer Ken Sanzel Writer John Behring Director