Netwrck 
Bowser Junior
Robert "Bowser" Bernard Koopa Junior (More commonly known as Junior) is one of the main characters in the SML series and is a student at the Y U DUMB? Elementary School.
He is a Koopa who is best friends with Cody, Joseph, and Jeffy. He is the son of Bowser.
Bowser Junior rarely bothers Chef Pee Pee. Despite that, however, Chef Pee Pee still hates him.
He often likes to joke about Cody's mom for being fat.