Name: Chuck
Japanese name: チャック
Sex: Male
Breed: Retriever mix

Chuck is the son of Booby. He is wearing a collar, indicating that he used to be a pet dog.

Chuck meets Weed in the forest and is warned of the bears in the area. Chuck's father is sure he can protect his son alone and moves deeper into the forest for safety reasons.

However, they don't get far as he and his father are attacked by the Hybrid Polar bear. Booby is killed quickly by the bear.

In pure despair, Chuck tries to attack the bear to defend his father. Soon, he too is killed by the monster.