User blog comment:Toothless the Nightfury/Questions for Toothless/@comment-3230751-20130408133946/@comment-3230751-20130408141546

Thanks again AddyD! Don't worry I already consider him to be far more than an assistant! He is always helping me out with stuff. Now about Alvin: As is said there is a HUGE shift from the books to movie. Can you imagine the scrawny Alvin being able to handle himself when put up against the mountain of a man that is Stoick? Also Toothless is far more deadly, so a scrawny man would seem very unintimidating! Alvin just outsmarted characters in the books, but Stoick is a lot less dense in the movie, so silly little skinny me trying to pull the wool over his eyes would probably not be all that much of a problem. As the bigger Alvin, he is dangerous to Hiccup, Toothless, and Stoick once again. He can put up a dangerous fight, and he is still obviously a pretty clever liar and deciever. So that is why I believe they changed Alvin.