kazoo
Krazy Kat.
kangaroo jack
Kitara from Avatar
Krazy Kat .
Kenny from South Park.
Kim Possible Krazy Kat
Kid Flash , King of the Royal Mounted ,
Well... Kermit the Frog?? I guess he's not exactly a cartoon though... Kit, of the Kit 'n' Carlyle cartoon strip
kanga from Winnie the pooh and kid notorious and the kool-aid man
Krazy Kat .
Kris kringle