James Mason
Self - Host / Captain Vialez

John Doucette
/ Matt Kovacs / Fallon / Bouclet / Jim Tally / Capt. Jerry Comstock / Chuck Nol...

John Bryant
Patrolman Kenny / Paul Chalmers / Tony Savage / Sam Gates / Lt. Lyle Smith / Pet...

Diana Lynn
/ Bonnie Brewster

John Ireland
/ Billy Bob Jackson / Pete Bronson / Andrew Evans / Jim Regan

Arthur Franz
/ Steve Jordan / Larry Fleming / Chris Grine / Sgt. Douglas Renfrew / Chris Mat...

Barbara Billingsley
/ Ruth Curtis / Clare Gibney / Ellen / Olivia Bryant

Skip Homeier
Dick Newton / Slim Haskell / Mark Norton / Zakka / Stretch / Paddy

Margaret Field
Lola / Denise / Carla / Renee Beddoe / Laura Warren /

Hayden Rorke
/ Pastor Thompson / Albert Cook / John Whitlock / Brian Levering

Scott Brady
/ Calvin Penny / Reno Cromwell / Officer Jim Kovacs / Shotgun Slade

Katherine Warren
/ Louise / Mrs. Gunther / Miss Dennis - Teacher

Edmond O'Brien
/ Capt. Simpson / Rick Saunders / Jim Reardon

Paul Brinegar
/ Cousin Obie (uncredited) / Joe / Brown / Link

Richard Carlson
/ Josef Lindquist / Kelly McCall / Lawrence 'Larry' Cameron / Alan Mitchell

Hans Conried
Professor / Professor Greentree / Emory Caldwell / Warren Fitzjerner /

Vincent Price
Narrator / Wendell Bensen / / Swede / Baron Laval aka Aristide Pujol / An Artis...

Stephen McNally
Frank Dyson / Police Chief Dan Grabow / Lt. Al Merrit / Tom Novak / Pvt. Earl We...

Paul Langton
Stacey Harris / Cochran / Landry / Mal Martin / Pete Hunter

Lee Van Cleef
Wink / Sheriff / Cowboy / Dallas Clancy / Larkin