"To think that I've got 25 years of acting and I'm getting to do something I've never done before — a superhero project," he tells EW with a laugh. "My brother Owen's two sons who are about 5 and 8, and my brother Andrew's daughter is 10. I showed them a few of these scenes, and it was just so funny to see them get quiet and really concentrate and then start asking me questions like, 'So you operate the robot?!' They very rarely show interest in anything that I'm up to! It was funny to see them get immediately hooked in by the show."