Hemo the Magnificent 1957

Synopsis:

Professor Frank Baxter and some animated friends answer questions about blood. what makes it red? Why do little animals' hearts beat so quickly? And so much more.

Directed by: Frank Capra & William T. Hurtz
Written by: Frank Capra
Runtime: 54 minutes
Cast:
Frank Baxter
Frank Baxter
Himself 
Richard Carlson
Richard Carlson
Mr. Fiction Writer 
Mel Blanc
Mel Blanc
Squirrel / Turtle / Alligator / Rabbit (voice) 
Sterling Holloway
Sterling Holloway
Lab assistant 
Marvin Miller
Marvin Miller
Hemo / Professor Anatomy