James Marsden has dispelled rumors he is the mystery father of actress January Jones' 2-year-old son, Xander Dane Jones. "There's so much stupid talk out there," Marsden, who played Scott Summers / Cyclops in the first X-Men film trilogy, says in the December issue of Playboy. "I think that came from somebody thinking we were both in 'X-Men' so it must be true. Every time I see January, she's like, 'Hey, father of my baby.' " Jones played evil telepath Emma Frost in a later film, "X-Men: First Class." Marsden, 40, has a son, Jack, and a daughter, Mary, with ex-wife Lisa Linde, and a son, William, from a relationship with Brazilian model Rose Costa.