"I'm always Santa," the mega-star said about the Cruise family Christmas proceedings during a press conference for Valkyrie, which hits theaters Dec. 25. "The teenagers know it's me, but I was surprised at Suri last year. Kate [Holmes] made the Santa outfit and when I came out, I did my best Santa impression. She looked at me and said, 'No, dada.' This year, I'm going to do a little better. I'm workin' on it."