Warren Beatty
John Reed
Diane Keaton
Louise Bryant
Edward Herrmann
Max Eastman
Jerzy Kosiński
Grigory Zinoviev
Jack Nicholson
Eugene O'Neill
Paul Sorvino
Louis Fraina
Maureen Stapleton
Emma Goldman
Nicolas Coster
Paul Trullinger
M. Emmet Walsh
Speaker at Liberal Club
Ian Wolfe
Mr. Partlow
Bessie Love
Mrs. Partlow
MacIntyre Dixon
Carl Walters
Pat Starr
Helen Walters
Eleanor D. Wilson
Mrs. Reed
Max Wright
Floyd Dell
George Plimpton
Horace Whigham
Harry Ditson
Maurice Becker
Leigh Curran
Ida Rauh
Kathryn Grody
Crystal Eastman
Brenda Currin
Marjorie Jones
Nancy Duiguid
Jane Heap
Norman Chancer
Barney
Dolph Sweet
Big Bill Haywood
Ramon Bieri
Police Chief
Jack O'Leary
Pinkerton Guard
Gene Hackman
Pete van Wherry
Gerald Hiken
Dr. Lorber
William Daniels
Julius Gerber
Dave King
Allan Benson
Joseph Buloff
Joe Volski
Stefan Gryff
Alex Gomberg
Denis Pekarev
Interpreter in Factory
Roger Sloman
Vladimir I. Lenin
Stuart Richman
Leon Trotsky
Oleg Kerensky
Alexander Kerensky / Himself - Witness
Nikko Seppala
Young Bolshevik Soldier
John J. Hooker
Senator Overman
Shane Rimmer
MacAlpine
Jerry Hardin
Harry
Jack Kehoe
Eddie
Christopher Malcolm
CLP Party Member #1
Tony Sibbald
CLP Party Member #2
R.G. Armstrong
Government Agent
Josef Sommer
State Department Official
Jan Tříska
Karl Radek
Åke Lindman
Scandinavian Escort
Pertti Weckström
Finnish Doctor
Nina Macarova
Russian Nurse
Jose De Fillippo
Russian Doctor
Andreas La Casa
Little Boy
Roger Baldwin
Himself - Witness
Henry Miller
Himself - Witness
Adela Rogers St. Johns
Herself - Witness
Dora Russell
Herself - Witness
Scott Nearing
Himself - Witness
Tess Davis
Herself - Witness
Heaton Vorse
Herself - Witness
Hamilton Fish
Himself - Witness
Isaac Don Levine
Himself - Witness
Rebecca West
Herself - Witness
Will Durant
Himself - Witness
Will Weinstone
Himself - Witness
Emmanuel Herbert
Himself - Witness
Arne Swabeck
Himself - Witness
Adele Gutman Nathan
Herself - Witness
George Seldes
Himself - Witness
Kenneth Chamberlain
Himself - Witness
Blanche Hays Fagen
Herself - Witness
Galina von Meck
Herself - Witness
Art Shields
Himself - Witness
Andrew Dasburg
Himself - Witness
Hugo Gellert
Himself - Witness
Dorothy Frooks
Herself - Witness
George Jessel
Himself - Witness
Jacob Bailin
Himself - Witness
John Ballato
Himself - Witness
Lucita Williams
Herself - Witness
Bernadine Szold-Fritz
Herself - Witness
Jessica Smith
Herself - Witness
Harry Carlisle
Himself - Witness
Arthur Mayer
Himself - Witness
Miriam Margolyes
Woman with Notebook (uncredited)
John Ratzenberger
Communist Leader (uncredited)
Simon Jones
Louise Bryant's Colleague in France (uncredited)
Jill Goldston
Dancing Woman (uncredited)