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)