Nom Nom is a recurring and possibly the main antagonist of We Bare Bears. He is a multi-billionaire anthropomorphic koala who had acquired internet fame through a series of popular videos on the internet.
In the Christmas episode "Christmas Parties", he hosts the Christmas party. The Bears are excited to go there, but they have already been invited by their friends, Ranger Tambers, Charlie and Chloe Park. However, Nom Nom hates them and kicks them out by telling them they are uninvited, much to their dismay.