Nicolas Falacci Creator, Writer, Executive Producer Cheryl Heuton Creator, Writer, Executive Producer 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 Will Patton Det. Gary Walker Guest Star Lesley Fera ATF Agent Annie Wilson Guest Star Sarah Carter Nadine Hodges Guest Star Susan Beaubian Stendhauser Guest Star Michelle Nolden AUSA Robin Brooks Guest Star Markus Flanagan ATF Supervisor Eric Turner Guest Star Matthew John Armstrong Richard Davis Guest Star Joshua Leonard Roy Mitchell Guest Star Sandra Lindquist Nikki Davis Guest Star Bobby Hall Guard Guest Star Cassandra Freeman Tech Guest Star Matthew Yang King Tech Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Julie Hebert Writer Barry Schindel Executive Producer Don McGill Writer David W. Zucker Executive Producer Dennis Smith Director Ken Sanzel Writer J.David Harden Writer Andrew Dettman Writer J. Miller Tobin Director John Behring Director