Bonita Granville
Nancy Drew
Acting
John Litel
Carson Drew
Acting
James Stephenson
Challon
Acting
Frankie Thomas
Theodore 'Ted' Nickerson
Acting
Frank Orth
Captain Tweedy
Acting
Helena Phillips Evans
Mary Eldredge
Acting
Renie Riano
Effie Schneider, Drew's Maid
Acting
Charles Trowbridge
Hollister
Acting
Dick Purcell
Keiffer
Acting
Edward Keane
Adam Thorne
Acting
Mae Busch
Miss Tyson, the Nurse
Acting
Tommy Bupp
Spud Murphy (uncredited)
Acting
Betty Jane Graham
Brinwood Student (uncredited)
Acting
Stuart Holmes
Telegrapher (uncredited)
Acting
Vera Lewis
Miss Van Deering (uncredited)
Acting
Jack Mower
Radio Station Technician (uncredited)
Acting
John Ridgely
Radio Station Technician (uncredited)
Acting
Cliff Saum
Farmer (uncredited)
Acting
Joanne Tree
Brinwood Student with Black Hat (uncredited)
Acting
Brandon Tynan
Dr. Raymond 'Ray' Spires (uncredited)
Acting
Lottie Williams
Mrs. Ray Spires (uncredited)
Acting
Tom Wilson
Brennan, the Gate Guard (uncredited)
Acting