Dana Delaney begins a two episode guest stint on Castle on March 22 and ABC has released five sneak peeks from the upcoming new episode, which are embedded below. DANA DELANY TO GUEST STAR IN TWO EPISODES OF "CASTLE," BEGINNING MARCH 22 ON ABC. To Read More Click Here .
Former Desperate Housewives co-stars Nathan Fillion and Dana Delany will be reuniting for a two-part all new episode of Castle. The first part will air on a Sunday - March 21, to be exact - and will conclude on Monday, March 22. ABC has released promo photos for the March 21 episode, along with a synopsis. Check them out below. DANA DELANY TO GUEST STAR IN TWO EPISODES OF "CASTLE," BEGINNING SUNDAY, MARCH 21 ON ABC.