Credit: Richard Cartwright/ABC Television Group © 2012 Disney Photo: Kate Beckett Rounds the Corner in Castle Season 5 Finale: "Watershed"

Another day, another theory on whether or not Beckett will become Mrs. Richard Castle. We’ve already given you some of our thoughts on Kate’s possible response to the crucial question, but what do some of the Castle cast members think?

Molly Quinn, for one, hopes Beckett will say yes to her on-screen dad’s big question, telling TVLine, “Castle is the best man out there and absolutely loves her and is devoted to her.”

We certainly see Molly’s point there, and another member of Castle’s family seems to agree as well. Susan Sullivan (AKA Marvelous Martha) echoes Molly’s sentiments to TV Guide, noting, "What woman in her right mind would say no to him?"

And if Beckett does say yes, Susan is keenly aware that could pose a big problem for Martha. "Therein would lie the problem: I may actually have to move out. Yikes!"

However, not everyone in the Castle cast is so convinced that Beckett will say yes. Tamala Jones (Lanie) thinks that Beckett's desire for career advancement in Washington, D.C. could outweigh her feelings for Castle. "Beckett is a strong woman, and she's not going to forget who she is. So she may say no — or not right now," Tamala explains to TV Guide.

Looks like the cast is pretty divided to us. Do you think Beckett will say yes? Share your thoughts and theories below!

Sources: TVLine / TV Guide