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