Lost Planet Airmen

Tristram Coffin

Prof. Jeff King

Mae Clarke

Glenda Thomas

Don Haggerty

Tony Dirken

House Peters Jr.

Burt Winslow

James Craven

Prof. Millard

I. Stanford Jolley

Prof. Bryant

Ted Adams

Martin Conway

Marshall Bradford

Dr. Graffner

Stanley Price

Gunther von Strum

Douglas Evans

Civil Defense Chairman

Arvon Dale

Chairman's Aide

Tom Steele

Henchman

Dale Van Sickel

Henchman

David Sharpe

Henchman

Carey Loftin

Henchman

Bud Wolfe

Henchman

Frank O'Connor

Old Watchman

Art Gilmore

Radio Voice