Bowser Jr.

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Bowser Jr. full name Prince Bowser Koopa Jr. is the son of Bowser and brother to the seven Koopalings. He first appeared in Super mario sunshine as the main villan taking the disguise of shadow mario and framing Mario for graffite work and the tried to kill him. He is much like his father as one day he would like Mario to be destroyed and usually being the right hand man in Bowsers evil plans. As shown in New super mario bros. Wii he is tricky disguising himself and the koopalings as a cake and capturing Peach under his father's command. He is also shown to have his own Koopa clown car. He is also shown to be able to lead the Koopa Troop when his father is not around. =====

NEW SUPER MARIO BROS. WII
Bowser Jr. appears in the new game New super mario bros. Wii as one of the main antagonist,(the other being his father). He first shows up at peach's birthday party disguising himself and his siblings as a cake. Then spring out and capture Princess Peach and take her to the airship