'Castle' fans are still waiting to find out who will get to play the title character's absentee father, but in the meantime, the show continues to draw great guest stars each episode (Mondays, 10PM ET on ABC).

AOL TV has just learned exclusively that a certain 'Desperate Housewives' alumnus will soon be stopping by.

Richard Burgi -- whom Wisteria Lane fans remember as Susan's (Teri Hatcher) ex Karl, the one who was engaged to Edie (Nicolette Sheridan) and then had an affair with Bree (Marcia Cross) before dying in a plane crash -- will be popping up on 'Castle' for an episode this November.

They're shooting the episode this week, but we've got early details on the episode and Burgi's role.

Here's the official description for episode #408, and a little bit more about Burgi's character:

When a murder case takes Castle, Esposito and Ryan to Atlantic City -- becoming half investigation and half bachelor party for Ryan -- they question the casino co-owner (guest star Richard Burgi) in connection with the crime. Charlie Turner is the slick co-owner of The Sapphire Coast Resort and Casino in Atlantic City. When his long-time business partner is killed, Charlie grants the guys full access to his casino.

So, 'Castle' fans: Are you excited for this episode?