Trailer
Cast
Bob Harks
Man Fleeing Movie Theatre (uncredited)
Walter Matthau
Drunk
Reb Brown
Young Man on Motorcycle (uncredited)
Diana Herbert
Woman (uncredited)
Bert Kramer
Policeman (uncredited)
Grant Owens
Police Officer (uncredited)
Eddie Smith
Citizen (uncredited)
Barry Sullivan
Dr. Willis Stockle
John S. Ragin
Chief Inspector
Dick Tufeld
Opening Narrator (uncredited)
Alex Brown
Pool Player
Sam Chew Jr.
Tony (Kathie's Husband) (uncredited)
Bruce M. Fischer
Man (uncredited)
Paul LeClair
National Guardsman (uncredited)
Sandy Ward
Studio Guard (uncredited)
Dick Warlock
Diver at Hollywood Reservoir (uncredited)
Gabriel Dell
Sal
Donald Moffat
Dr. Harvey Johnson
Charlie Picerni
Pool Player (uncredited)
Arthur Tovey
Citizen (uncredited)
Monica Lewis
Barbara
Gene Dynarski
Dam Caretaker
Charlton Heston
Stewart Graff
John Elerick
Carl Leeds
Kenny Endoso
Bar Cook (uncredited)
Jeannie Epper
Blonde Woman (uncredited)
Frances Osborne
Housewife (uncredited)
Keith Walker
Man on the Radio (voice) (uncredited)
John Dennis
Brawny Foreman
H.B. Haggerty
Pool Player
Karl Lukas
Man (uncredited)
Victoria Principal
Rosa Amici
Lloyd Gough
Bill Cameron
Scott Hylands
Asst. Caretaker
Ric Carrott
National Guardsman (uncredited)
Ernest Harada
Seismologist (uncredited)
Jerry Hardin
Man (uncredited)
Jimmy Nickerson
Seismology Graduate Student (uncredited)
George Sawaya
Deputy Sherriff (uncredited)
Dean Smith
Pool Player (uncredited)
Don Wilbanks
Dam Workman with Blowtorch (uncredited)
Richard Roundtree
Miles Quade
Alan Vint
Ralph
Tim Herbert
Las Vegas Man
Ava Gardner
Remy Royce-Graff
George Kennedy
Sgt. Lew Slade
Pedro Armendáriz Jr.
Chavez
Jesse Vint
Buck
George Murdock
Colonel
Josh Albee
Boy with Radio (uncredited)
Lloyd Nolan
Dr. James Vance
David S. Cass Sr.
Sherriff Merle (uncredited)
Lonny Chapman
LAPD Captain (uncredited)
Stuart Nisbet
Man on Loudspeaker (voice) (uncredited)
Debralee Scott
Kathie (TV version) (uncredited)
Marjoe Gortner
Jody
Polly Burson
Earthquake Survivor (uncredited)
Leoda Richards
Emergency Soup Kitchen Worker in Wilson Plaza (uncredited)
Erik Cord
Office Worker (uncredited)
Geneviève Bujold
Denise Marshall
Kip Niven
Walter Russell
Lorne Greene
Sam Royce
John Randolph
Los Angeles Mayor
Bob Cunningham
Dr. Frank Ames