Claus

Claus (クラウス, Klaus in the North American version of Brawl) is a major character in Mother 3. He is a boy from Tazmily Village, and the energetic twin of Lucas. Claus looks very similar to Lucas other than the different colors of his clothing and hair, though he is energetic and far more courageous than Lucas. He is last seen by the player lying motionless near the Drago Plateau, although the residents of Tazmily are never made aware of this.

It is not explicitly stated that Claus is alive until the end of Chapter 8, where it is revealed he is being exploited for his ability to use the elusive PK Love by Porky Minch