David Randall

Richard Derr

Joyce Hendron

Barbara Rush

Dr. Tony Drake

Peter Hansen

Sydney Stanton

John Hoyt

Dr. Cole Hendron

Larry Keating

Dr. Tony Drake

Peter Hanson

Julie Cummings

Judith Ames

Dr. George Frye

Stephen Chase

Harold Ferris

Frank Cady

Dr. Emory Bronson

Hayden Rorke

Dr. Ottinger

Sandro Giglio

Eddie Garson (uncredited)

James Congdon

Stewardess

Laura Elliott

Rioter Bringing Guns (uncredited)

Kirk Alyn

Alice

Frances Sandford

Alice

Frances Sanford

British U.N. Representative (uncredited)

Leonard Mudie

Traveler (uncredited)

Gertrude Astor

Matron with Cigarette (uncredited)

Queenie Smith

Student (uncredited)

Robert Chapman

Rudolph Marston

Freeman Lusk

Glen Spiro

Joseph Mell

Newsdealer (uncredited)

Gene Collins

Headwaiter (uncredited)

Marcel De La Brosse

Traveler (uncredited)

Estelle Etterre

Narrator/U.S. President (voice)

Paul Frees

Paul

Art Gilmore

Leda (uncredited)

Gay Nelson

Stanley

Keith Richards

Edna Smith

Student

Mary Murphy

Mike

Rudy Lee

Chief Airport Inspector

John Ridgely

Reporter at Airport

James Seay

Dr. Zenta

Harry Stanton

Indian Chairman

Hassan Khayyam

Clerk

Bill Meader

Frenchman

Ramsey Hill

Traveler

Sam Finn

Student

Stuart Whitman

Student

Charmienne Harker

Student

Walter Kelley

Student

Chad Madison

Student

Dolores Mann

Student

Robert Sully

Student

Richard Vath

Clerk

William Meader