Nick Carter, Master Detective

Stanley Ridges

Doctor Frankton (as Stanley C. Ridges)

Donald Meek

Bartholomew, the bee man

Addison Richards

Streeter - President of Radex

Henry Victor

Hammil - tall spy boss

Milburn Stone

Krebs - 2d hurt worker

Martin Kosleck

Otto - 3d hurt worker

Frank Faylen

Pete Foley - 1st pilot

Sterling Holloway

Bartholomew's Bee Asst.

Wally Maher

Cliff Parsons - Keller's Pilot & Asst.