Which of the Players in this Photo is not Japanese?

Charlie:  Hmmm.  I think the guy on the far right is not Japanese.

Khal:  He looks like a Mexican.

Charlie:  You might be right.  I think his name is Roberto.

Khal:  Last week, I thought you said his name was Boob.

Charlie:  Well, that was last week. This is this week.

Khal:  Anyway, those two ladies are really cute.

Charlie:  Yes they are.  Don't forget; I saw them first.

Just kidding again, Bob, Charlie, Khal, Masako, and Hiromi.  ;)  Hi Yutaka-san!  Last weekend,  Bob was kind enough to allow me to play in place of him. He got to squeegee but, didn't get to play. What a guy.  Thanks Roberto!