TV viewers will be ABCing more of Dana Delany than ever in March. (We're really sorry.)

The Desperate Housewives star will appear on back-to-back episodes of Castle this spring, as ABC looks to increase that show's exposure.

Delany (seen below as Katherine Mayfair) will play Federal Agent Jordan Shaw on the Nathan Fillion-led drama. She'll first appear on a special Sunday night episode that follows Desperate Housewives, as Brothers & Sisters will take March 21 off.

The Emmy winner’s second Castle installment will take place the very next night, as the show returns to its regular Monday-at-10 timeslot on March 22.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.