Claus is a boy from Tazmily Villag, 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,Claus is the older twin brother of Lucas of the twins; As well as the oldest child of Hinawa and Flint.

Spoiler

The Masked Man is the secondary antagonist of Mother 3; a mysterious character who debuts during the final scene of the fifth chapter. He is the only other person besides Lucas capable of removing the seven Needles. He attacks with lightning, a sword, an arm cannon and PK Love. Additionally, he has the ability to destroy PSI Shields and use mechanical wings to fly away. He also has a lightning attack that is able to instantly render Lucas's entire party unconscious, meaning that only himself and Lucas (because of the Courage Badge that was revealed to be a Franklin Badge) remain in the battle. The attack is unavoidable. Attempting to revive any party members will cause the Masked Man to do the same lightning attack, making it impossible to revive party members.