Okay, now that we've got yet another new character in the Strawhat crew, let's discuss what his role is.
Someone I think mentioned that he has musical notes in some of his speech bubbles. Does that mean he's our musician?
I don't know. I still think he's only a temporary member, and that as soon as they avenge him or leave the triangle he'll turn to dust or something.
Or it could just be Lafitte in disguise.