District Attorney Radford (uncredited)
Senator Orton Worrell
Dr. Henryk Belicec
The President
Bill Hunt
Peter Ducek (1 episode)
Steve Gaines (1 episode)
Spencer Durning (1 episode)
Carl Greenslate
Senator Jessup
Thomas Wheelock (1 episode)
Henry Thompson (1 episode)
Peter Lassiter
Curt Flemming
Richard Whittaker
Patrick Rumsey (1 episode)
Dr. Eaton
Doctor (uncredited)
John Dobbs (2 episodes)
Edward Millerton
Nick Mirsky
Defense Attorney Patrick Rumsey (1 episode)
Judge Lawrence Hellman (1 episode)
Phelps Bowen
Palmer Strickland
Thomas Trager
Joseph 'Joe' Farley
Clive Peoples Jr.
Ambassador Magee
Defence Secretary Charles Potter
Atty. Lester Adams
Henry Meade
Mr. Ducksworth
Tom Sutherland
Albert Cohn
Priest
Joseph Kennedy Sr. (3 episodes)
Stewart Merriman
Stewart Merriman (14 episodes)
Stewart Merriman
Martin Ransil
Franklin D. Roosevelt (3 episodes)
Jack Finley
Richard Kline
Waldo Winchester
Ernest Rasher (1 episode)
Al Duffield
Judge Fenwick
Lannon
Dr. Sam Garrison (7 episodes)
Lieutenant Koznicki
General Winder
President Gerald Ford
James Angleton
Barney Taber
Dr. Jeffrey Stewart
Mr. Rafferty
Chief Paul Schaeffer
Whitman
Max Richter
Jack Ockham
George Barton
Sam Taylor
Narrator (voice)
George Bynum
Adrian Pruitt
State Department Official
McAdam
Roy Lefcourt
Dr. Martin Grossman
Jason R. Reid
Mr. Parker
Henry Mills
Nathaniel Hawthorne (4 episodes)
Dr. Dienhart
Ezra Mannon (5 episodes)
Larry Butler
Benson Fisher (1 episode)
Committee Chairman
Brig. Gen. Varnum (1 episode)
Ted Van Sant
Pete Russell
Nikolai (1 episode)
Polonius (1 episode)
Nikolai
Rothko