What cinematic universe includes the characters Toothless, Hiccup and Astrid?

DreamWorks Animation's 'How to Train Your Dragon' universe follows the friendship between Hiccup, a young Viking, and Toothless, a rare Night Fury dragon. Astrid is a Viking warrior and Hiccup's eventual romantic partner. The trilogy (2010-2019) is acclaimed for its emotional maturity, its character evolution over time and its impressive flight sequences. The franchise has expanded with television series and short films.