Charlton Heston character Stewart Graff
Ava Gardner character Remy Royce-Graff
George Kennedy character Sgt. Lew Slade
Lorne Greene character Sam Royce
Geneviève Bujold character Denise Marshall
Richard Roundtree character Miles Quade
Marjoe Gortner character Jody
Barry Sullivan character Dr. Willis Stockle
Lloyd Nolan character Dr. James Vance
Victoria Principal character Rosa Amici
Walter Matthau character Drunk
Monica Lewis character Barbara
Gabriel Dell character Sal
Pedro Armendáriz Jr. character Chavez
Lloyd Gough character Bill Cameron
John Randolph character Los Angeles Mayor
Kip Niven character Walter Russell
Scott Hylands character Asst. Caretaker
Tiger Williams character Corry
Donald Moffat character Dr. Harvey Johnson
Jesse Vint character Buck
Alan Vint character Ralph
Lionel Johnston character Hank
John Elerick character Carl Leeds
John S. Ragin character Chief Inspector
George Murdock character Colonel
Don Mantooth character Sid (as Donald Mantooth)
Michael Richardson character Sandy
Alex Brown character Pool Player (as Alex A. Brown)
Bob Cunningham character Dr. Frank Ames
John Dennis character Brawny Foreman
Gene Dynarski character Dam Caretaker
Bob Gravage character Farmer Mr. Griggs
H.B. Haggerty character Pool Player
Tim Herbert character Las Vegas Man
Dave Morick character Technician
Ines Pedroza character Laura (as Inez Pedroza)
Reb Brown character Young man on motorcycle (uncredited)
William Whitaker character Ambulance Driver (uncredited)
Arthur Tovey character Citizen (uncredited)
Lonny Chapman character L.A.P.D. Captain (uncredited)
Patty Elder character Blonde Secretary in Royce Building (uncredited)
Jeannie Epper character Blonde Woman Fleeing Theater / Blonde Woman in Elevator (uncredited)
Diana Herbert character Woman #2 (uncredited)
Bert Kramer character Policeman (uncredited)
Karl Lukas character Man #3 (uncredited)
John Tuell character Prop Tractor Driver (uncredited)
