Here Comes the Judge: But Which Judge?
When Mr. Toad is brought up on charges of stealing a motor car, he represents himself and to his doom, calls Winkie as his star witness. Presiding over the trial is, of course, the judge.
The Judge, however, is apparently a master of disguises. He looks different depending on the source of the story.
Book: The Adventures of Mr. Toad
Walt Disney's children's book, The Adventures of Mr. Toad, tells a very simplified story of Toad's wild times. This is how it depicts the judge:

This judge looks like a cartoon version of Jim Backus!

Movie: The Adventures of Mr. Toad
In the movie, The Adventures of Mr. Toad, the judge looks more like a male version of a dear sweet grandma:

Here's another shot of him taken from the Life magazine 1949 review of The Adventures of Ichabod and Mr. Toad:

Disneyland: Mr. Toad's Wild Ride
Of course, who wouldn't recognize the prosecutor in Toad's case? Here he is from the movie, shown with that sweet judge:

But what's this? In Disneyland's Mr. Toad's Wild Ride, the prosecutor is now an evil judge:
You think it's harsh to call him evil?!
