Leif Erickson

Marty Treleavan

Doug McClure

George Spencer

Roddy McDowall

Dr. Ralph Baird

Lois Nettleton

Janet Turner

Keenan Wynn

Milton

Jack Ging

Controller

Sam Melville

Stewart

Leonard Stone

Harry Burdick

Sidney Clute

Mr. Swenson

Christopher Dark

Mr. McCann

Loretta Leversee

Mrs. McCann

Patricia Mattick

Ellen

Victor Izay

Second Man

Kenneth Tobey

Capt. Wilson

Ed McCready

Football Fan

Kit Woodhouse

Milton's Wife

Sue Casey

Sherry

Dean Stewart

Young Man

Renny Roker

Phone Operator

David M. Frank

Ticket Agent

Robert Dowdell

Tower Radar Operator

Lee Stanley

Radio Room Operator