"How to Train Your Dragon 2" is a majestic ride with plenty of eye-popping, fantastical elements, but the actors behind the otherworldly characters are pretty human-seeming, even for being huge movie and TV stars. In this interview with Gerard Butler (who plays young hero Hiccup's booming dad Stoick the Vast) and Craig Ferguson (who plays Gobber the Belch, Stoick's closest pal), we discover why both actors are reasonably jealous of the other.