Kiefer Sutherland is set to be slapped with his slammer sentence December 21 for a September DUI bust. (His attorney is recommending 48 days.) But the actor, 40, isn't sweating it, at least not on the set of his Fox hit 24. "Kiefer is good," costar Mary Lynn Rajskub told Usmagazine.com at the world premiere sneak preview of the new season of 24 in Times Square October 25. "He's there, and I haven't really talked to him about the whole DUI thing. We're all plugging away, and it's been great," the actress, 36, added. "The spirits have been really great on set." She said they still have some wild times between takes. Well, sort of. "We party," she said, "with tea and cookies."