Charlton Heston
Stewart Graff
Ava Gardner
Remy Royce-Graff
George Kennedy
Sgt. Lew Slade
Lorne Greene
Sam Royce
Geneviève Bujold
Denise Marshall
Richard Roundtree
Miles Quade
Marjoe Gortner
Jody
Barry Sullivan
Dr. Willis Stockle
Lloyd Nolan
Dr. James Vance
Victoria Principal
Rosa Amici
Walter Matthau
Drunk
Monica Lewis
Barbara
Gabriel Dell
Sal
Pedro Armendáriz Jr.
Chavez
Lloyd Gough
Bill Cameron
John Randolph
Los Angeles Mayor
Kip Niven
Walter Russell
Scott Hylands
Asst. Caretaker
Tiger Williams
Corry
Donald Moffat
Dr. Harvey Johnson
Jesse Vint
Buck
Alan Vint
Ralph
Lionel Johnston
Hank
John Elerick
Carl Leeds
John S. Ragin
Chief Inspector
George Murdock
Colonel
Don Mantooth
Sid
Michael Richardson
Sandy
Alex Brown
Pool Player
Bob Cunningham
Dr. Frank Ames
John Dennis
Brawny Foreman
Gene Dynarski
Dam Caretaker
Bob Gravage
Farmer Mr. Griggs
H.B. Haggerty
Pool Player
Tim Herbert
Las Vegas Man
Dave Morick
Technician
Ines Pedroza
Laura
Josh Albee
Boy with Radio (uncredited)
Don Ames
Citizen (uncredited)
Benjie Bancroft
Citizen (uncredited)
Buzz Barbee
Restaurant Patron (uncredited)
Joan Blair
Pawnbroker's Wife (TV version) (uncredited)
Hal Bokar
Dam Workman (uncredited)
Reb Brown
Young Man on Motorcycle (uncredited)
Vivian Brown
Woman (uncredited)
Ian Bruce
Officer Scott (Wilson Plaza) (uncredited)
Polly Burson
Earthquake Survivor (uncredited)
William H. Burton Jr.
Stranger (uncredited)
Ric Carrott
National Guardsman (uncredited)
David S. Cass Sr.
Sherriff Merle (uncredited)
Lonny Chapman
LAPD Captain (uncredited)
Sam Chew Jr.
Tony (Kathie's Husband) (uncredited)
Shannon Christie
Dr. Vance's Nurse (uncredited)
Erik Cord
Office Worker (uncredited)
Caitanya Dasi
Hare Krishna (uncredited)
Cinmayi Devi
Hare Krishna (uncredited)
Ken DuMain
Earthquake Survivor in Wilson Plaza (uncredited)
Brent Dunsford
Man Drinking from Plastic Cup in Wilson Plaza (uncredited)
Patty Elder
Blonde Secretary in Royce Building (uncredited)
Kenny Endoso
Bar Cook (uncredited)
Jeannie Epper
Blonde Woman (uncredited)
Dotty Ertel
Earthquake Survivor (uncredited)
Bobby Ferro
Sports Car Thief (uncredited)
Bruce M. Fischer
Man (uncredited)
Sig Frohlich
Doctor (uncredited)
James W. Gavin
Helicopter Pilot (uncredited)
Ernest Harada
Seismologist (uncredited)
Jerry Hardin
Man (uncredited)
Bob Harks
Man Fleeing Movie Theatre (uncredited)
Orwin C. Harvey
Man on the Balcony of a Falling House (uncredited)
Lars Hensen
Citizen (uncredited)
Diana Herbert
Woman (uncredited)
Bert Kramer
Policeman (uncredited)
Paul LeClair
National Guardsman (uncredited)
Karl Lukas
Man (uncredited)
Ernesto Molinari
Citizen (uncredited)
Stevie Myers
Earthquake Victim (uncredited)
Jimmy Nickerson
Seismology Graduate Student (uncredited)
Stuart Nisbet
Man on Loudspeaker (voice) (uncredited)
Frances Osborne
Housewife (uncredited)
Grant Owens
Police Officer (uncredited)
Charlie Picerni
Pool Player (uncredited)
Tony Regan
Man Fleeing Movie Theatre (uncredited)
Leoda Richards
Emergency Soup Kitchen Worker in Wilson Plaza (uncredited)
Clark Ross
Man in Outer Office (uncredited)
George Sawaya
Deputy Sherriff (uncredited)
Mark Sawtelle
Boy (uncredited)
Fred Scheiwiller
Jay the Bartender (uncredited)
Debralee Scott
Kathie (TV version) (uncredited)
Dean Smith
Pool Player (uncredited)
Eddie Smith
Citizen (uncredited)
Norman Stevans
Radio Station Technician (uncredited)
Arthur Tovey
Citizen (uncredited)
John Tuell
Prop Tractor Driver (uncredited)
Dick Tufeld
Opening Narrator (uncredited)
Kitty Vallacher
Grocery Store Clerk (uncredited)
Keith Walker
Man on the Radio (voice) (uncredited)
Sandy Ward
Studio Guard (uncredited)
Rick Warick
Office Worker (uncredited)
Dick Warlock
Diver at Hollywood Reservoir (uncredited)
William Whitaker
Ambulance Driver (uncredited)
Don Wilbanks
Dam Workman with Blowtorch (uncredited)
Forrest Wood
Man (uncredited)
Clint Young
Dam Workman (uncredited)
