The Penguin Pool Murder

New York schoolmarm Hildegarde Withers assists a detective when a body of unscrupulous stockbroker Gerald Parker suddenly appears in the penguin tank at the aquarium.

• 
  George Archainbaud
• 
  Ray Lissner
• 
  Robert Margolis

• 
  Edna May Oliver
  Hildegarde Withers
• 
  James Gleason
  Police Insp. Oscar Piper
• 
  Robert Armstrong
  Barry Costello
• 
  Mae Clarke
  Gwen Parker
• 
  Donald Cook
  Philip Seymour
• 
  Edgar Kennedy
  Officer Donovan
• 
  Clarence Wilson
  Bertrand B. Hemingway
• 
  James Donlan
  Security Guard Fink
• 
  Gustav von Seyffertitz
  Von Donnen
• 
  William Le Maire
  MacDonald
• 
  Joe Hermano
  Chicago Lew
• 
  Guy Usher
  Parker
• 
  Rochelle Hudson
  Telephone Operator
• 
  Wilfrid North
  Judge
• 
  A.S. Byron
  Jailer Strauss (uncredited)
• 
  Edith Fellows
  Little Girl at Aquarium (uncredited)
• 
  Chuck Hamilton
  Jack, Policeman (uncredited)
• 
  Mary Mason
  Parker's Secretary (uncredited)
• 
  Sidney Miller
  Isadore Marks (uncredited)
• 
  Dorothy Vernon
  Purse Snatching Victim at Aquarium (uncredited)