Waluigi

Waluigi is Luigi's self-proclaimed rival in nearly every sport, and a good friend of Wario's. Though he yearns to someday take the spotlight, it seems he is forever stuck in the shadows of nearly everyone else.

Super Mario Continuance (REITERATED)
Waluigi is briefly referenced in Super Mario Continuance (REITERATED) by Effigy. According to her, a purple man she thought was named "Wuigi" entered the Aduraice mansion in hopes to find the missing people, but was swiftly murdered.