This is Junior!

Here of the little brat who have doomed the koopalings into the forgotten world( But I don't I don't think they still forgotten cuz God sve NSMBWii)

But I still this lil' guy and reminds me a bit at Bart Simpson for his tempered and a bit his voice (at least, in my language, French.)

Hope you like this pic.

Bowser Jr. (c) Nintendo