Cast
Bonita Granville
Nancy Drew
John Litel
Carson Drew
Mae Busch
Miss Tyson
Jack Mower
Radio Station Technician (uncredited)
Tom Wilson
Brennan (uncredited)
Renie Riano
Effie Schneider
Charles Trowbridge
Hollister
Tommy Bupp
Spud Murphy (uncredited)
Vera Lewis
Miss Van Deering (uncredited)
John Ridgely
Radio Station Technician (uncredited)
James Stephenson
Challon
Dick Purcell
Keiffer
Edward Keane
Adam Thorne
Betty Jane Graham
Brinwood Student (uncredited)
Frankie Thomas
Ted Nickerson
Frank Orth
Captain Tweedy
Stuart Holmes
Telegrapher (uncredited)
Brandon Tynan
Ray Spires (uncredited)