- Bonita Granville
- Nancy Drew
- Frankie Thomas
- Ted Nickerson
- John Litel
- Carson Drew
- Frank Orth
- Captain Tweedy
- Renie Riano
- Effie Schneider
- Vera Lewis
- Miss Rosemary Turnbull
- Louise Carter
- Miss Floretta Turnbull
- William Gould
- Daniel Talbert
- George Guhl
- Smitty
- John Ridgely
- Reporter
- William Hopper
- Reporter
- Creighton Hale
- Reporter
- Frank Mayo
- Tribune Photographer
- Frederic Tozere
- District Attorney's Investigator
- Don Rowan
- Phillips the Chauffeur
- Dick Elliott
- McKeever
- Fern Barry
- McKeever's Secretary
- Nat Carr
- Policeman
- Sol Gorss
- Reporters' Driver
- Frank Meredith
- Motorcycle Policeman
- Jack Mower
- Ice Company Dispatcher
- Terry Nibert
- Turnbulls' Kitchen Maid
- Paul Panzer
- Reporter
- Eddie Parker
- Motorcycle Policeman
- Bob Reeves
- Cop
- John J. Richardson
- Reporter
- Cliff Saum
- Burt the Iceman
- Joanne Tree
- Teen
- Jack Wise
- Second Photographer
