Cheryl Heuton Creator Nicolas Falacci Creator 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 Peter MacNicol Prof. Larry Fleinhardt Actor Diane Farr Agent Megan Reeves Actor Navi Rawat Amita Ramanujan Actor Dylan Bruno Agent Colby Granger Actor Aya Sumika Special Agent Liz Warner Guest Star Andrea Roth Alex Trowbridge Guest Star Graham McTavish John Corcoran Guest Star Sharif Atkins Clay Porter Guest Star Nathan Baesel Jared Parr Guest Star Lois Atkins Janine Parr Guest Star Lena Georgas Louise Esmond Guest Star Erica Muñoz Mary McAfee Guest Star Richard Wharton Homeless Man Guest Star David Desantos Peter Guzman Guest Star Michael Balsley Nathaniel Greene Guest Star Mark Doerr John Lerner Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer David W. Zucker Executive Producer Don McGill Writer Ralph Hemecker Director