Cheekums

Cheekums is Lil' Gideon's pet hamster.

History
Gideon tells Cheekums to guard shrunken Dipper and Mabel while he's away, eating ice cream. Cheekums is shown to have a low intelligence level, which is shown when Dipper pokes him and he is unresponsive. Also, when Mabel gives him a command to move, twice, he is, again, unresponsive and she lovingly refers to him as a "big ol' dummy-dum."

Appearance
Cheekums is a light brown hamster with a pink nose and brown freckles, he also has brown inside of his ears, whiskers, and he has 2 front teeth (buck teeth) and has gray claws.

Personality
Cheekums is described as a "big ol' dummy-dum" which means he doesn't react to any command given, obviously. He doesn't seem to be afraid of Gideon or even listen to what he says.