Bonita Granville

Nancy Drew

John Litel

Carson Drew

Frankie Thomas

Ted Nickerson

Dickie Jones

Killer Parkins

Mary Lee

Mary Nickerson

Larry Williams

Miles Lambert

Betty Amann

Eula Denning

Thomas E. Jackson

City Editor Bostwick

Olin Howland

Police Sergeant Entwhistle

Sheila Bromley

Bonnie Lucas

Hooper Atchley

The Chemist (uncredited)

Irving Bacon

Tracy (uncredited)

Sam Bagley

Trainer (uncredited)

Al Bain

Gym Spectator (uncredited)

Frankie Burke

Beldenburg Hotel Bellboy (uncredited)

William Clemens