Full Credits
22 members

Bonita Granville
Nancy Drew

John Litel
Carson Drew

James Stephenson
Challon

Frankie Thomas
Ted Nickerson

Frank Orth
Captain Tweedy
Helena Phillips Evans
Mary Eldredge

Renie Riano
Effie Schneider

Charles Trowbridge
Hollister

Dick Purcell
Keiffer

Edward Keane
Adam Thorne

Mae Busch
Miss Tyson

Tommy Bupp
Spud Murphy (uncredited)

Betty Jane Graham
Brinwood Student (uncredited)

Stuart Holmes
Telegrapher (uncredited)

Vera Lewis
Miss Van Deering (uncredited)

Jack Mower
Radio Station Technician (uncredited)

John Ridgely
Radio Station Technician (uncredited)
Cliff Saum
Farmer (uncredited)
Joanne Tree
Student with Black Hat (uncredited)

Brandon Tynan
Ray Spires (uncredited)
Lottie Williams
Mrs. Ray Spires (uncredited)

Tom Wilson
Brennan (uncredited)
14 members
William Clemens
Director
Lester D. Guthrie
Assistant Director
Kenneth Gamet
Screenplay
Mildred Wirt Benson
Story
John Langan
Dialogue
Carolyn Keene
Story
Edward Stratemeyer
Novel
Bryan Foy
Producer
L. William O'Connell
Director of Photography
Heinz Roemheld
Music
Stanley Jones
Sound
Stanley Fleischer
Art Direction
Milo Anderson
Costume Design
Frank Magee
Editor