Tom Holland surprised his Onward co-star Chris Pratt during the latter's appearance on Jimmy Kimmel Live! on Thursday.While taking questions from the audience, Pratt was surprised to see a familiar face when Holland asked his Onward co-star to name his favorite actor "out of all of the actors in the world."Pratt said Denzel Washington was his favorite actor, though Holland wasn't happy with the answer. "How about an actor whose name begins with Tom?" asked Holland.