Hiccup Horrendous Haddock III

Hiccup is a teenage boy who dreams of becoming the best viking by capturing and killing a dragon like his father. He successfully caught a Night Fury while the other vikings are fighting off the dragons. But just he was about the kill it, he instead freed him when he saw how scared the dragon felt. He then help the dragon recover from his wounds and began to form a close bond to it. Thus naming it Toothless.

Trivia

 * Barney will meet Hiccup in Barney Teaches You How to Train Your Dragon.