The stars of Mad Men appeared on a panel last night at the historic Cinerama Dome at the ArcLight in Hollywood as part of the 25th Annual Paleyfest. Also on hand was series creator Matthew Weiner who has been busy crafting stories for the second season. Weiner played his cards close to his vest, careful not to divulge any spoilers for upcoming shows, but he did reveal recurring guest star John Slattery would return in his role as Roger Sterling.

Jon Hamm almost wasn't able to make it to the event, since he has been filming a remake of The Day the Earth Stood Still (with Keanu Reeves) in Vancouver. Fortunately, Hamm was able to get on a flight back to LA just in time for the discussion.

The rest of the cast was represented, too: Christina Hendricks (Joan), Vincent Kartheiser (Pete), Elisabeth Moss (Peggy), John Slattery (Roger), Rich Sommer (Harry), Robert Morse (Cooper) and Aaron Staton (Ken).