Wario, Daisy, and Waluigi; Where'd they come from?

[Mr Khan]

RolStoppable said:
Daisy was the princess Mario had to save in Super Mario Land.
Wario was the villain in Super Mario Land 2: 6 Golden Coins and the hero in Super Mario Land 3: Wario Land.
Waluigi first appeared in Mario Tennis on the Nintendo 64, so he's actually a character made to fill up a slot.

Bingo. The Princess of Sarasaland, the anti-Mario (rumor has it that R&D made Wario because they were mad that they were being made to make Mario games, since Mario was EAD's thing, not theirs, so they made a gross pastiche of Mario), and the anti-Luigi just to fill up a roster space.

Mario Tennis also brought back Birdo and Baby Mario, though.