A Day at the Zoo (1939)

Elenco

• 

  Tex Avery

  Other Elk Named Bill (voice) (uncredited)

• 

  Mel Blanc

  Egghead / Elk Named Bill / Monkey / Parrot / Stool Pigeon / Mother Ostrich / Joe Jumbo / Wildcat (voice) (uncredited)

• 

  Robert C. Bruce

  Narrator (voice) (uncredited)