EnglishCharlton Heston as Stewart Graff
Ava Gardner as Remy Royce-Graff
George Kennedy as Sgt Lew Slade
Lorne Greene as Sam Royce
Geneviève Bujold as Denise Marshall
Richard Roundtree as Miles Quade
Marjoe Gortner as Jody
Barry Sullivan as Dr Willis Stockle
Lloyd Nolan as Dr James Vance
Victoria Principal as Rosa Amici
Walter Matthau as Drunk
Monica Lewis as Barbara
Gabriel Dell as Sal Amici
Pedro Armendáriz Jr as Officer Emilio Chavez
Lloyd Gough as Bill Cameron
John Randolph as Mayor Lewis
Kip Niven as Walter Russell
Scott Hylands as Max Assistant Dam Caretaker
Tiger Williams as Corry Marshall
Donald Moffat as Dr Harvey Johnson
Jesse Vint as Buck Jody's Roomate
Alan Vint as Hank Jody's Roomate
Michael Richardson as Ralph Jody's Roomate
John Elerick as Carl Leeds
John S Ragin as Chief Inspector LA Dept of Water & Power
George Murdock as Colonel Army Corps of Engineers
Don Mantooth as Sid National Guard Officer
Lionel Johnston as Sandy National Guard Officer
Alex Brown as Pool Player
Bob Cunningham as Dr Frank Adams
Johnny Dennis as Brawny Foreman Army Corps of Engineers
Gene Dynarski as Fred Dam Caretaker
Bob Gravage as Farmer Griggs
H B Haggerty as Big Bald Pool Player
H B Haggerty as Big Bald Pool Player
H B Haggerty as Big Bald Pool Player
H B Haggerty as Big Bald Pool Player
Tim Herbert as Las Vegas Booking Agent
Dave Morick as Technician City of LA Emergency Services
Ines Pedroza as Laura Royce's Office Secretary
Reb Brown as Boy on Motorcycle
William H Burton as Stranger
James W Gavin as Helicopter Pilot
Bert Kramer as Policeman at Emergency Control Center (scenes dele
Frances Osborne as Housewife at Supermarket
Sandy Ward as Studio Guard
William Whitaker as Ambulance Driver
Josh Albee as Boy with Radio
Joan Blair as Pawnbroker's Wife
Hal Bokar as Workman #1 at Dam
Vivian Brown as Woman
Ian Bruce as Officer Scott Wilson Plaza
Ric Carrott as National Guard Private
David S Cass Sr as Sherriff Merle Slade's Nemesis
Lonny Chapman as LAPD Captain
Sam Chew Jr as Kathie's Husband
Shannon Christie as Dr Vance's Nurse
Eugene Collier as Office Worker
Patty Elder as Blonde Secretary in Royce Building
Kenny Endoso as Bar Cook
Robert Feero as Car Thief
Bruce M Fischer as Man
Ernest Harada as Seismologist
Jerry Hardin as Man
Diana Herbert as Woman
Karl Lukas as Man
Jimmy Nickerson as Seismology Graduate Student
Stuart Nisbet as Loudspeaker Voice
Grant Owens as Police Officer
Charlie Picerni as Pool Player
George Sawaya as Deputy Sherriff
Fred Scheiwiller as Jay the Bartender
Debralee Scott as Kathie
Dean Smith as Pool Player
Kitty Vallacher as Grocery Store Clerk
Keith A Walker as Radio Voice
Dick Warlock as Diver at Hollywood Reservoir
Don Wilbanks as Workman at Dam with Blowtorch
Forrest Wood as Man
Clint Young as Workman #2 at Dam