The main cast of "A Dad for Christmas" includes Jason Alexander as Nick, the down-on-his-luck father who's trying to win back his daughter's affection. Joely Fisher stars as Laura, Nick's ex-wife who's determined to prevent him from reconnecting with their daughter. Rachel G. Fox plays Jessica, the young girl caught in the middle of her parents' custody battle. The movie also features supporting performances from Treat Williams as Laura's new husband and Zachary Gordon as Nick's son from a previous relationship.