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 Navi Rawat Amita Ramanujan Guest Star Neil Patrick Harris Guest Star Susan Egan Guest Star Egan Prescott Guest Star Greg Zola Guest Star Ian Barford Guest Star Tom Irwin Guest Star Jamie McShane Guest Star Fay Wolf Guest Star Murphy Cross Guest Star Michael Cutt Guest Star Yang King Guest Star Susan Beaubian Guest Star Mauricio Mendoza Guest Star Emma Prescott Guest Star Matthew Yang King Guest Star Ridley Scott Executive Producer Tony Scott Executive Producer Alex Gansa Executive Producer Brooke Kennedy Executive Producer Lesli Linka Glatter Director Liz Friedman Writer