As previously reported, Joe Jonas is out and Cody Longo is in on Brothers & Sisters, as the actor will play a younger version of Tommy on an upcoming two-episode flashback arc that delves into the Walker family history.

Meanwhile, sources now confirm that a familiar face will come aboard the drama in the role of a 1970's William Walker.

Daniel Cosgrove - who has appeared on Beverly Hills, 90210, Dirty Sexy Money, Guiding Light and, most recently, The Good Wife - has signed on to play a version of Tom Skerritt's deceased character.

Think there's any resemblance between the actors?

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