Full Cast & Crew

Tristram Coffin as Prof. Jeff King

Mae Clarke as Glenda Thomas

Don Haggerty as Tony Dirken

House Peters Jr. as Burt Winslow

James Craven as Prof. Millard

I. Stanford Jolley as Prof. Bryant

Ted Adams as Martin Conway

Marshall Bradford as Dr. Graffner

Stanley Price as Gunther von Strum

Douglas Evans as Civil Defense Chairman

Arvon Dale as Chairman's Aide

Tom Steele as Henchman

Dale Van Sickel as Henchman

David Sharpe as Henchman

Carey Loftin as Henchman

Bud Wolfe as Henchman

Frank O'Connor as Old Watchman

Art Gilmore as Radio Voice