If u could put another character in adventure time...

[Rana Royalty]

XiXtXaXcXhXiX

Itachi from Naruto or to be as random as the show, Yoda from star wars.

I think the first thing itachi would do would be to kill the ice king and his annoyingness. ( I love ice king though, so I wouldn't want that ) yoda would be pretty random.

[Pastel Starlight]

angelpinkydoe

Oh yes! Kid would go insane! He would destroy Finn and jake's tree house in rage, or maybe go live with the earl of lemongrab xp . I still love putting L in the candy kingdom whee

xx

Kid would go insane, and blow it up with his Death Cannon!
As for L. Eating Kandy Kingdom together sound so good.
Earl the Lemon is insane though!