Do you have any more scoop on the Castle wedding? — Jeanine
You can't have a wedding without a best man, right? Expect a ridiculous competition between Ryan and Esposito as they try to win the job. "Ryan [wants] to have nice time at the bachelor party," Seamus Dever teases of his character's approach. "He knows a great place with a great wine list. He's going to be a classy best man where Esposito is going to be like, 'Yeah, I'm your frat boy!'" Unfortunately for both men, Castle may (unintentionally) be hard to woo. "The whole time they're jockeying for favor, all of their efforts are wasted because he's not even aware of what they're trying to do," Dever says.