Joel (Joey as called by Leorich) Slikk is one of Leorich's and Leopold and brothers' uncle and the ally of Harold Slikk. He was born on August 5, 1985. His first appearance was when Joel Slikk and Harold went to a basketball game and ends up winning. His allies are Leopold and Leonard. In one of the parties, Leopold and Leonidas splashed a waterbottle on him for not cooking the burger from the cookout. Joel is seen feeding Apollo Slikk, Leopold Jr,'s little brother. Joel used to be roommates with Harold and his sisters and a brother, Leondra Slikk and Timothy Slikk. Along with Leonidas and Leopold, Joel is the seventh oldest of the Slikk family.

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