'Brothers & Sisters': 'Beverly Hills, 90210' alum Daniel Cosgrove tapped for young William

"Brothers & Sisters" is really ramping up its castings for the two hour flashback episode airing on Sun., April 11 at 9pm on ABC.

ABC tells Zap2it that former "Beverly Hills, 90210" actor, Daniel Cosgrove, has signed on to play young William Walker.

We knew that William Walker, the man who is pretty much behind most of the present drama on the show, would have to be a particularly special casting. He'd have to be dashing enough to grab Nora's heart and pick up a few extras along the way like Holly and Ryan's mother.

We can now say, bravo, ABC.

Cosgrove is best known for his role on "Beverly Hills, 90210" and his off-again-on-again relationship with Jennie Garth's Kelly Taylor. He also had quite a stint on "Guiding Light" as Bill Lewis. He has guest starred on other ABC Shows, "The Forgotten" and "Dirty Sexy Money," as well as CBS' "The Good Wife."

Other confirmed castings include Walker matriarch, Nora, whose younger self will be played by Lauren Bittner. Bittner has appeared on NBC's "The Black Donnellys." Kasey Campbell, who has been in a few episodes of Showtime's "Weeds," will play Young Kevin.

What do you think of Cosgrove playing the man who made "Brothers & Sisters" possible?

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Photo credit: ABC