Butler

Butler, is a butler, as his name states. Nobody knows his actual name, since he responds to basically any name. 

He's technically freelance, getting hired by multiple people, and always getting fired because he runs off and does his own thing. This is because he almost never gets paid for his work. 

He's a free spirit at heart, but hides it under a serious demenor. Butler very often resorts to calling people names, even affectionately.  He's also known to have a bit of a wild side, and often gets himself stuck in situations that he'd rather not talk about ever again.

He has no weapon, and instead fights with his arms and legs. 

His legs are normally made of heavyweight metal, but his alternate legs are made of lightweight and flexible material instead. 

Butler uses he/him.