Amy Madigan
Colonel Raymond Malik (4 eps)
Harvey Keitel
John O'Neill (2 eps)
Donnie Wahlberg
Kirk', CIA operative (2 eps)
Shirley Douglas
Madeline Albright (2 eps)
William Sadler
Neil Herman (2 eps)
Dan Lauria
George Tenet (2 eps)
Stephen Root
Richard Clarke (2 eps)
Michael Benyaer
Khalid Sheikh Mohammed / 'KSM' (2 eps)
Michael Murphy
William Cohen (2 eps)
Barclay Hope
John Miller (2 eps)
Nabil Elouahabi
Ramzi Yousef (2 eps)
Shaun Toub
Emad Salem (2 eps)
Mido Hamada
Massoud (2 eps)
Frank John Hughes
Bill Miller (2 eps)
Katy Selverstone
Nancy Floyd (2 eps)
Pip Torrens
Paul Kessler (2 eps)
Wendy Crewson
Valerie James (2 eps)
Kevin Dunn
Samuel 'Sandy' Berger (2 eps)
Riz Ahmed
Yosri (2 eps)
Noam Jenkins
Marwan Al-Shehhi (2 eps)
Salvatore Antonio
Ahmed Ressam (2 eps)
Daniel Kash
Dave Williams (2 eps)
Sasha Roiz
Nick Demoia (2 eps)