Jojo was a teenager.supermariofan said:In Horton Hears a Who Jesse Mccartney played Jojo who is actually a little kid so I guess either Justin Timberlake or Justin Bieber could be an ok Bowser Jr'3K said:No thanks. If they made an animated Mario flick, they should go the South Park route and just get an actual little kid to do his voice like they do for Kyle's little brother.
I think Tara Strong could do an okay Bowser Jr.
should be voiced by Mark Wahlberg but not in an itallian accent
(voiced by Gary Oldman bond more with
(voiced by Justin Bieber) than with the other koopalings so he could teach him what it's like to rule the Mushroom Kingdom once they conquer it. Try imagining Gary Oldman and Justin Bieber bonding in reality