I'm perpetually confused at the reactions towards Barry in this game but, regardless, he'll most likely have a swimsuit costume of his own if he's playable (which he very much appears to be, with that screenshot and the fact that he's getting his own character trailer at some point).
You can see "and more..." in the swimsuit category pics for the male characters (as well as female):
When we have more than enough guys in the party already, it's such a waste. I hope they get it over with soon, so that I can be appropriately disgusted.