Junior G-Men of the Air

Billy Halop

Ace Holden

Gene Reynolds

Eddie Holden

Lionel Atwill

The Baron

Frank Albertson

Jerry Markham

Huntz Hall

Bolts Larson

Gabriel Dell

Stick Munsey

Bernard Punsly

Creaseball Plunkett

Frankie Darro

Jack

David Gorcey

Double Face Gordon

Turhan Bey

Henchman Araka

John Bleifer

Henchman Beal

Eddie Foster

Henchman Comora

John Bagni

Henchman Augar

Noel Cravat

Henchman Monk

Paul Phillips

Agent Dick Parsons

Kathryn Adams

Grace

William Benedict

Whitey

Lynton Brent

Sergeant

Paul Bryar

Chemist

Frederick Burton

Col. Mitchell

Lewis D. Collins

Director