Amy Brenneman
— Agent Robin O'Brien
Kathy Baker
— ATF Director Maggie Hale
Vincent Angell
— Agent Reeve Aquilar
Keith David
— FBI Director Richard Long
Mark Boone Junior
— Jake Neill
Michael O'Neill
— ATF Asst. Director Ben Walker
Sean Bridgers
— Smitty
Jay O. Sanders
— Sam Sinclair
Sarah Trigger
— Carol
William Richert
— Patrick McKennan
John Philbin
— Randy
Raphael Sbarge
— Director Hale's Assistant
John Beasley
— Secretary Robert Edwards
Coby Bell
— Agent Dinko Bates
Brandon Smith
Justin Williams
— Matt O'Brien
Phyllis Applegate
— Rachel Allen
Harry Hutchinson
— Agent-in-Charge
Rob Nagle
— Billy Jones
Joe Spano
— Senator at Hearing (uncredited)