You Never Can Tell

Ex-police/army dog King inherits a fortune from an eccentric millionaire. But someone poisons him for his fortune. He gets to go back to earth as a human detective to bring his killer to justice and protect the girl who used to look after him.

• 
  Lou Breslow

• 
  Dick Powell
  Rex Shepherd
• 
  Peggy Dow
  Ellen Hathaway
• 
  Joyce Holden
  Goldie Harvey
• 
  Charles Drake
  Perry Collins
• 
  Albert Sharpe
  Grandpa Hathaway
• 
  Lou Polan
  Sergeant Novak
• 
  Frank Nelson
  Lieutenant Gilpin
• 
  William Vedder
  Nicholas
• 
  Frank Gerstle
  Detective
• 
  Anthony George
  Louie Luisetti
• 
  Tom Dugan
  Bus Driver (uncredited)
• 
  Henry Kulky
  Gorilla / Prisoner (uncredited)
• 
  Olan Soule
  Dog House Salesman (uncredited)
• 
  Elsie Baker
  (uncredited)
• 
  Tony Barr
  Jail Inmate (uncredited)
• 
  Richard Bartell
  Waiter (uncredited)
• 
  Genevieve Bell
  Dowager (uncredited)
• 
  Margaret Bert
  Factory Worker (uncredited)
• 
  Chet Brandenburg
  Man on Street (uncredited)
• 
  Ralph Brooks
  Man in Bar (uncredited)