Quack... Quack... Quack... Emilio Estevez, Joshua Jackson and more stars from the 'D2: The Mighty Ducks' cast chatted with ET on the set of their love letter to hockey. Within these behind-the-scenes interviews, Jackson fanned out over NHL icon Wayne Gretzky, who played himself in a cameo for the 1994 sequel. 'Daredevil's Elden Henson shared a glimpse of what it's like to attend school on a movie set. | Entertainment Tonight