Spook Louder

Moe Howard

Moe

Larry Fine

Larry

Curly Howard

Curly

Lew Kelly

Prof. J. O. Dunkfeather

Stanley Brown

Wilson, the Reporter

Theodore Lorch

Graves, the Inventor

Charles Middleton

Graves' Valet

Stanley Blystone

Spy Leader

Helen Servis

Ultra-Thin Housewife

Symona Boniface

Plumpish Housewife

Shirley Patterson

Perkins, the Secretary

Heinie Conklin

Devil Costume Spy

William Kelley

Skeleton Costume Spy

Clyde Bruckman

Writer

Carl Anderson

Art Direction

Paul Borofsky

Editor

Del Lord

Director, Producer

Hugh McCollum

Producer

John Stumar

Cinematography