From nearly the end of the theatrical series, The Missing Mouse was unique in a few ways. Popular voice actor Paul Frees- Captain Hook from Disney’s Peter Pan from the same year- handles the voice duties for this short, and therein is one of the unique aspects of the film.
While Jerry is looting the fridge, Tom comes by and hammers him… He pinches Jerry’s tail in a mousetrap, and while running away, the mouse spills a bottle of white shoe polish on himself.
Suddenly, the radio blurts out that an experimental “explosive” white mouse has escaped from the lab. Tom sees Jerry and is frightened to death. Jerry takes advantage, and keeps trying to fall off shelves and such… the cat catching him no matter what. Tom lets irons and pianos fall on him instead of Jerry.
When the mouse falls in the sink, Tom realizes that he’s been a fool; he hits Jerry with a hammer and throws him out. The real white mouse then enters, and when Tom washes the fake one and then sees Jerry, he ages 50 years! The radio then announces that the explosive mouse is no longer dangerous… Tom strikes him and BOOM! The cat sticks his head out of the rubble and says, “Don’t you believe it!”
This is one of the rare cartoons in which Tom speaks; although here it sounds as though he is imitating character actor Ned Sparks in the final scene.
This is the only Tom and Jerry cartoon (and possibly the only MGM cartoon) for which Scott Bradley does not receive music credit.