Nancy Drew… Detective

Bonita Granville

as Nancy Drew

John Litel

as Carson Drew

James Stephenson

as Challon

Frankie Thomas

as Theodore 'Ted' Nickerson

Frank Orth

as Captain Tweedy

Helena Phillips Evans

as Mary Eldredge

Renie Riano

as Effie Schneider, Drew's Maid

Charles Trowbridge

as Hollister

Dick Purcell

as Keiffer

Edward Keane

as Adam Thorne

Mae Busch

as Miss Tyson, the Nurse

Tommy Bupp

as Spud Murphy (uncredited)

Betty Jane Graham

as Brinwood Student (uncredited)

Stuart Holmes

as Telegrapher (uncredited)

Vera Lewis

as Miss Van Deering (uncredited)

Jack Mower

as Radio Station Technician (uncredited)

John Ridgely

as Radio Station Technician (uncredited)

Cliff Saum

as Farmer (uncredited)

Joanne Tree

as Brinwood Student with Black Hat (uncredited)

Brandon Tynan

as Dr. Raymond 'Ray' Spires (uncredited)

Lottie Williams

as Mrs. Ray Spires (uncredited)

Tom Wilson

as Brennan, the Gate Guard (uncredited)