Leo Gorcey as Slip Mahoney

Huntz Hall as Sach Jones

Veola Vonn as Lady Zelda

Leon Askin as Alex Baxis

Lisa Davis as Princess Ann

Sig Ruman as King Rinko

Bernard Gorcey as Louie Dumbrowsky

David Gorcey as Chuck

Benny Bartlett as Butch

Linda Bennett as Little Girl

Richard Benedict as Boris

Frank Richards as George

Mel Welles as Nick

Paul Burke as Michael, the real courier

John Bleifer as The Fake Courier