A Day at the Zoo
Plot: A tour of the zoo, in typical Tex Avery style: a series of one-liners and sight gags, punctuated by Egghead teasing a lion at intervals, despite the admonishments of the narrator.
Tex Avery. Tex Avery was 31 in A Day at the Zoo as 'Other Elk Named Bill (voice) (uncredited)'.
Mel Blanc. Mel Blanc was 30 in A Day at the Zoo as 'Egghead / Elk Named Bill / Monkey / Parrot / Stool Pigeon / Mother Ostrich / Joe Jumbo / Wildcat (voice) (uncredited)'.
Robert C. Bruce. Robert C. Bruce was 24 in A Day at the Zoo as 'Narrator (voice) (uncredited)'.
Tex Avery. Tex Avery was 31 in A Day at the Zoo as 'Director'
Melvin Millar. Melvin Millar was 38 in A Day at the Zoo as 'Story'