Directed by Joseph Barbera
When Tom's harassment gets out of hand, Jerry writes to his Cousin Muscles, a tough inner city mouse, and asks for his help.
Paul Frees
Muscles / Muscle Cat (voice) (uncredited)
William Hanna
Tom (voice) (uncredited)
Kitty Foiled
Mouse Cleaning
Dog Trouble
Pecos Pest
Salt Water Tabby
A Mouse in the House
The Framed Cat
Playful Pluto
