Bill Williams

as John Hand

Lyn Thomas

as Laura Greeling

Robert Ellis

as Pvt. Joe Rattigan

Paul Frees

as Dr. Charles T. Pommer

Rhoda Williams

as Stewardess Archer

Joan Barry

as Jean Meyers

Carol Varga

as Elaine Frohman

Thomas Browne Henry

as Prof. West

Thomas Wilde

as Collins

Fred Sherman

as Mr. Morse

Gregg Martell

as Jim Dale

Jess Kirkpatrick

as Pilot Viccarino

Court Shepard

as Hendry

Moe Howard

as Retlinger

Edward Bernds

as Television News Announcer