As Hiccup fulfills his dream of creating a peaceful dragon utopia, Toothless’ discovery of an untamed, elusive mate draws the Night Fury away. When danger mounts at home and Hiccup’s reign as village chief is tested, both dragon and rider must make impossible decisions to save their kind.
| Visual Effects | Carter Goodrich | Character Designer |
| Sound | John Powell | Original Music Composer |
| Production | Bonnie Arnold | Producer |
| Production | Doug Davison | Co-Producer |
| Production | Roy Lee | Co-Producer |
| Writing | Cressida Cowell | Novel |
| Production | Chris Sanders | Executive Producer |
| Editing | John K. Carr | Editor |
| Writing | Dean DeBlois | Screenplay |
| Directing | Dean DeBlois | Director |
| Production | Dean DeBlois | Executive Producer |
| Writing | Dean DeBlois | Story |
| Production | John Powers Middleton | Executive Producer |
| Sound | Tighe Sheldon | Sound |
| Visual Effects | Simon Otto | Animation |
| Visual Effects | Megha Davalath | Animation |
| Production | Kate Spencer | Co-Producer |
| Production | Michael A. Connolly | Co-Producer |
| Crew | Chris Hewitt | Post Production Assistant |
| Production | Brent Hutchins | Production Manager |
| Production | Brent Hutchins | Production Supervisor |
| Visual Effects | Christina N. de Juan | Visual Effects |
| Visual Effects | Willem Drees | Visual Effects |
| Visual Effects | Colleen O'Hagan | Visual Effects |
| Visual Effects | Hongseo Park | Visual Effects |
| Visual Effects | Dave Walvoord | Visual Effects Supervisor |
| Visual Effects | Leo Sanchez Barbosa | Animation |
| Camera | Gil Zimmerman | Director of Photography |
| Production | Tucker Scott Alleborn | Production Coordinator |
| Crew | Jennifer J. Pan | Supervising Technical Director |
| Art | Nelson Yokota | Storyboard Artist |
| Production | Jed Schlanger | Co-Producer |
| Visual Effects | Andrew Harkins | Animation |
| Art | Pierre-Olivier Vincent | Production Design |
| Editing | Brit DeLillo | Assistant Editor |
| Editing | Natalia Cronembold | Associate Editor |
| Production | Tyler Shelton | Production Supervisor |
| Production | Peter Litvack | Production Supervisor |
| Production | Mary Melendez | Production Supervisor |
| Production | Henri Hovhanesyan | Production Supervisor |
| Production | Bradford Lewis | Producer |
| Production | Jessica Bayliss | Production Supervisor |
| Production | Allison Bernardi Stauth | Production Supervisor |
| Writing | Chris Palmer | Story Artist |
| Visual Effects | Lisa Curtis Saunders | Pipeline Technical Director |
