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)

Jill Goldston

Character: Dancing Woman (uncredited)