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