- Writer/Director:
- Rudolph Cartier
- Writer:
- Reed de Rouen
- Based on a documentary play by:
- Felix Lutzkendorf
- Designer:
- Richard Wilmot
- Producer:
- Peter Luke
- Narrator:
- Kenneth Allsop
- Chairman:
- Robert Ayres
- Lieut. John E. Donovan:
- Paul Maxwell
- Marine Sergeant:
- Shane Rimmer
- Lee Harvey Oswald:
- Tony Bill
- First U.S. Marine:
- Callen Angelo
- Powers, U.S. Marine:
- Harry Tierney
- Second U.S. Marine:
- Colin Maitland
- Richard F Snyder, U.S. Consul in Moscow:
- John Alderson
- John A. McVicker, U.S. Vice-Consul in Moscow:
- Francis Napier
- Rima Shirokova, Intourist Guide, Moscow:
- Patricia Denys
- Messenger of the Aliens Department, Moscow:
- Harold Goldblatt
- Priscilla Johnson, American News Correspondent:
- Pearl Catlin
- Katherine Mallory, University of Michigan:
- Sarah Brackett
- Marina Oswald:
- Dora Reisser
- Spas T. Raikin, Traveller's Aid Representative:
- Warren Mitchell
- A reporter:
- Thick Wilson
- George:
- Barry Shawzin
- Jeanne:
- Marika Rivera
- Sefiora Duran:
- Dallia Penn
- Senor Eusebio Azque, Cuban Consul:
- George Roderick
- Kenneth O'Donnell:
- John Mackin
- Charles Givens:
- Donald Sutherland
- Radio announcer:
- David Healy
- Interrogator:
- Reed de Rouen
- Patrolman Tippit:
- Hal Galili
- Mrs. Markham, a waitress:
- Doris Nolan
- Manager of shoe store:
- David Graham
- Cinema cashier:
- Sheila Black
- Chief of Police:
- David Bauer
- Detective Baker:
- Philip Oxman
- First reporter:
- David Cargill
- Virginia Davies:
- Nicole Shelby
- Barbara Davies:
- Carol Cleveland
- British reporter:
- Leo Britt
- Second reporter:
- Grant Taylor
- Third reporter:
- Glenn Beck
- Television announcer:
- Norman Pilkington
- Photographer:
- Sidney Cosson
- Photographer:
- Tony Sibbald
- Ruby:
- John de Marco