Reuben is a pig-like character who has appeared in a total of 5 episodes. He usually speaks in a very calm, soothing voice and is shown to be very manipulative and cunning. His first major appearance was in Certifrycation Class, where he was the cooking instructor. In The Rat Sandwich, he tricked the gang into being his servants by planting his rat friend in his sandwich he ordered from the Catering Compant. In The Party Cruise, he tricked Mung Daal, Chowder, and Shnitzel into boarding a ship which he stole. He also made cameos in Grubble Gum and A Little Bit of Pizzazz!. Reuben is shown to strongly dislike Mung Daal and usually is shown scamming and manipulating Mung.