Umm...I seem to remeber Wart being in at least one episode of the Super Mario Show...For Some reason, an image of Wart in an icey feild comes to my mind, but don't quote me on that.
As for the absence of Wart, can he truely be considered a Mario character? I mean, he first appeared in Doki Doki Panic, which isn't a Mario game. However, they Made some changes to Doki Doki Panic and marketed it as Super Mario Brothers 2 (It was later released in Japan in Super Mario All Stars, with the name "Super Mario USA"). What's interesting is that the Shy Guys first appeared in Doki Doki Panic as well, and yet they're a welcomed part of the Mario Contium now. Also, the Little Black-star ninja was breifly in Super Mario World for the SNES in Bowser's castle...Would it be legal of possible for Wart to come back?
Or were Wart, The mini black star Ninja, Shy guys, and come to think of Birdo-add ins by NOA? I figured that they were originally in Doki Doki Panic, but, I guess i'm really not the expert.
Kweeh! Forget Whark! Kweeh! Is better!