This character is not popular or recognized in the parody universe.
Because it didn't appear frequently in other series or didn't have an actual appearance in the Angry German Kid parody universe.
These type of characters are considered unpopular.
If you think your character appeared in other series as well, make sure to link a source and a popular series on this page to prove it.
Sean Slikk is Leopold and Leonidas' big brother. He sometimes mature like some of the people.