See, who needs Tracy Jordan?  Of all of '30 Rock's peripheral characters, Walter "Dot Com" Slattery always seems to provide the most reason, even when his words of wisdom fall on deaf ears.  With '30 Rock' set to end after thirteen more episodes, actor Kevin Brown is doing the most reasonable thing of all: looking for more work with an upcoming stint on ABC's 'Castle!'  But who will the man-mountain play, and when can we expect to see?

Thanks to Entertainment Weekly, we've learned that oft-seen, seldom-heard '30 Rock' star Kevin Brown will soon make his way over to NBC's 'Castle' in the upcoming season's second episode.  Brown will play “Big” Percy Jenkins, an auction hunter who meets with Castle and Beckett while they are investigating a case that lands them in the middle of a 'Storage Wars'-style bidding contest.

Elsewhere, the biggest news to come out of 'Castle' Season 5 is that former 'Heroes' and 'The Office' star Jack Coleman will guest as a recurring senatorial antagonist for Beckett, who may or may not have ties to the man who attempted to kill her, Cole Maddox (‘Battlestar Galactica’s’ Tahmoh Penikett).  Of course, there's probably also that lingering thread of the fact that Castle and Beckett finally hooked up in the season 4 finale!

So yeah, they'll probably deal with that too.  Tell us what you think of the '30 Rock' star appearing on the show, and what you want from 'Castle' season 5 in the comments!