Cheekums

Cheekums is Gideon Gleeful's pet hamster.

History
Gideon tells Cheekums to guard the shrunken Dipper and Mabel while he's away eating ice cream. Cheekums is shown to have a low intelligence level when Dipper pokes him with a Q-tip and he is unresponsive. When Mabel gives him a command to move several times, he is again unresponsive and she lovingly refers to him as a "big ol' dummy-dumb."

Appearance
Cheekums is a brown hamster. He has a pink nose, black whiskers, gray claws, and two light yellow front teeth.

Personality
Cheekums is described as a "big ol' dummy-dumb," by Mabel, as he doesn't react to anything. He doesn't seem to be afraid of Gideon or even listen to what he says.