Mr. Busy

Beaver, also known as Mr. Busy, is a character in Disney's 1955 animated feature Lady and the Tramp. He is the one who helps get Lady's muzzle off and is voiced by Stan Freberg.

Appearance
Beaver looks and sounds almost identical to Gopher from the Winnie the Pooh franchise, except he's bigger, has a big beaver tail, and is a different color.

Role in Film
Lady and Tramp meet Beaver when trying to get Lady's muzzle off. A tree chewed down by Beaver nearly falls on them, and Tramp barely warns Lady in time to get out of the way. They see him chewing down branches and sections of the tree in order to finish his dam. This gives Tramp an idea on how to remove Lady's muzzle. Beaver struggles to push the log that he chewed over to the spillway and originally refuses to listen to Tramp, saying that he is busy, but Tramp then shouts in the beaver's ear that he needs a log puller. This gets Beaver's attention. Tramp takes on the role of a salesman and convinces Beaver to bite the muzzle off, much to Lady's relief. Beaver starts pulling the log using the muzzle, which he believes to be a log puller. It works all too well and Beaver is flung through the air, still attached to the log, and eventually lands in the water. The log floats over and completes the dam, much to Beaver's delight.