Here the thing, folks -- you should already be tuning in to ABC's Castle tonight at 10pm, for all sorts of reasons (roughly twenty-seven of them contain the words "Nathan Fillion"). But tonight, there's an extra special reason for us daytime fans to tune in: Sarah Brown -- recently Claudia on General Hospital and currently Sandy Sommers on The Bold and the Beautiful -- will make an appearance.

The plot of tonight's episode involves a dead man, a million-dollar heist, and a gossip item that might be more important than the first two things. Where does Sarah's character fit into this whole scheme? You'll have to tune in to find out.

You think Sarah will play someone more like Claudia or Sandy?

Photo Source: ABC