Nicolas Falacci Creator, Executive Producer Cheryl Heuton Creator, Executive Producer 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 Navi Rawat Amita Ramanujan Actor Dylan Bruno Agent Colby Granger Actor Sophina Brown Nikki Betancourt Actor Aya Sumika Special Agent Liz Warner Actor Peter MacNicol Prof. Larry Fleinhardt Actor Rowena King Elizabeth Hopkins Guest Star Stephen Spinella Hans Stollbach Guest Star Marilu Henner Regina Landers Guest Star Alanna Ubach Paula Watson Guest Star Kate Siegel Rachel Hollander Guest Star William Katt Sven Regal Guest Star Rick Hoffman Oliver Guest Star Armando Molina Raul Hernandez Guest Star Taylor Wilcox Scarlet McBain Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Gary Rieck Writer Ralph Hemecker Director Lewis Abel Executive Producer Andrew Dettmann Executive Producer Don McGill Executive Producer Ken Sanzel Executive Producer David W. Zucker Executive Producer