Who was a judge on America's Most Talented Kids who also starred in the 2004 computer-animated Christmas film, The Polar Express?
Daryl Sabara: Daryl Christopher Sabara (born June 14, 1992) is an American actor, perhaps best known for playing Juni Cortez in the "Spy Kids" film series, as well as for a variety of television and film appearances, including "Generator Rex", "Wizards of Waverly Place", "Father of the Pride", "The Polar Express", "Keeping Up with the Steins", "Halloween", and "America's Most Talented Kids" (on which he was a judge).
i don't know