Cute movie. Types? I've provided descriptions in case some of you did not catch all of their names during the movie. I didn't at least.
Hiccup - ENTP (main character)
Stoick - ISTJ or probably even ESTJ (the dad)
Gobber - Um, ESFJ? ESFP? (the guy who trains the kids)
Astrid - ISTP (love interest/tough girl)
Tuffnut - ESTP (annoying boy twin)
Ruffnut - ESTP (annoying girl twin)
Fishlegs - INTP (fat kid)
Snotlout - ESFP (the one that looks like Jack Black)
Toothless is, of course, untypeable.