Bottom Bag (Character) is a character that appeared in the episode Bottom Bag. At first he was an antagonist for trying to trick Uncle Grandpa into thinking he was Belly Bag and leaving Belly Bag behind. However, it was later revealed he did this because prior to the UG Gang finding him, he was alone on a shabby display rack in a store for many years and he went crazy due to the isolation. To remedy this, he was given to a child named Billy so he would not be alone and have full attention on him. He is voiced by Tommy Chong.
He is a blue fanny pack that is square shaped with yellow patches, red buttons for eyes, and a gold zipper mouth.
He is pretty relaxed and easy-going in personality. Even after being deceitful, it was hard for him to remain evil or mean, as he has a kind nature. He does get lonely pretty easily and has a hard time sharing the spotlight with someone else considering his long time isolation in a store.