Robert Redford

Joseph Turner

Faye Dunaway

Kathy Hale

Cliff Robertson

J. Higgins

Max von Sydow

G. Joubert

John Houseman

Mr. Wabash

Addison Powell

Leonard Atwood

Walter McGinn

Sam Barber

Tina Chen

Janice Chon

John Randolph Jones

Beefy Man

Michael Kane

S.W. Wicks

Don McHenry

Dr. Ferdinand Lappe

Jess Osuna

The Major

Dino Narizzano

Harold

Helen Stenborg

Mrs. Edwina Russell (as Helen Stenbure)

Patrick Gorman

Martin

Hansford Rowe

Jennings (as Hansford H. Rowe Jr.) (as Hansford Rolle)

Carlin Glynn

Mae Barber (as Carlin Gylnn)

Hank Garrett

Mailman

Michael Miller

Fowler

Arthur French

Messenger

Jay Devlin

Tall Thin Man

Frank Savino

Jimmy

Robert Phalen

Newberry

Garrison Phillips

Hutton

Lee Steele

Heidegger

Ed Crowley

Ordinance Man

John Connell

TV Reporter

Norman Bush

Alice Lieutenant

James Keane

Store Clerk

Ed Setrakian

Customer

Myron Natwick

Civilian

Michael Prince

Civilian

Carol Gustafson

Landlady

Sal Schillizzi

Locksmith

Harmon William

CIA Agent

David Bowman

Telephone Worker

Eileen Gordon

CIA Receptionist

Robert Dahdah

Santa Claus

Steve Bonino

Kid

Jennifer Rose

Kid

David Allen

Kid

Glenn Ferguson

Kid

Paul Dwyer

Kid

Marian Swan

Nurse

Dorothi Fox

Nurse

Ernest Harden Jr.

Teenager

Beverly Goodman

Girl (uncredited)

Russell Johnson

Intelligence Officer at Briefing (uncredited)

Bruce Moreno

Computer Operator (uncredited)

Lauren Simon

Neighbor in Elevator (uncredited)