"Extra's" going behind the bench of ABC's other Sunday night hit, "Boston Legal." You can expect plenty of tricks and treats on this week's episode, as James Spader, a.k.a. Batman, and his sexy sidekick, Rhona Mitra, get into some legal trouble of their own.

While on the set, the eccentric cast showed their enthusiasm for being part of ABC's new Sunday lineup, following "Desperate Housewives." "I never imagined what television was going to be like to work on," Spader revealed. "And I'm really having a great time with it. Every week, I can't wait to see what the hell happens next."

And with Spader and William Shatner both taking home Emmys last season for "The Practice" -- the verdict on the spin-off is in -- it's a sure-fire, case-closed hit. "Is that right?" Shatner asked. "If so, I need to get more money."

And talking about Emmys, Spader revealed that "Practice" guest star Sharon Stone may reprise her Emmy-winning role: "It would be great to get her to come back in."

Lake Bell and newcomers Monica Potter and Mark Valley add to the amazing ensemble. "There are so many beautiful people on the show," Valley insisted. "I just don't know who my character's going to end up sleeping with, to be honest with you."

And Mitra returned the compliment: "He's very handsome, so he's nice to have around as set dressing."

Check out "Boston Legal" for yourself, Sunday night at 10.