| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bonnie Arnold | Crew | Production | Producer |
 Brad Lewis | Crew | Production | Producer |
 Carter Goodrich | Crew | Visual Effects | Character Designer |
 Chris Sanders | Crew | Production | Executive Producer |
 Dean DeBlois | Crew | Writing | Screenplay, Director, Executive Producer, Story |
 Doug Davison | Crew | Production | Co-Producer |
 Gary Rizzo | Crew | Sound | Sound Re-Recording Mixer |
John K. Carr | Crew | Editing | Editor |
 John Powell | Crew | Sound | Original Music Composer |
 Kate Spencer | Crew | Production | Co-Producer |
Michael A. Connolly | Crew | Production | Co-Producer |
 Randy Thom | Crew | Sound | Sound Designer, Supervising Sound Editor |
 Roy Lee | Crew | Production | Co-Producer |
 Cressida Cowell | Crew | Writing | Book |
Megha Davalath | Crew | Visual Effects | Animation |
Scott R. Lewis | Crew | Sound | Sound Re-Recording Mixer |
Simon Otto | Crew | Visual Effects | Animation |
Tighe Sheldon | Crew | Sound | Sound |
 John Powers Middleton | Crew | Production | Executive Producer |
 Brian Chumney | Crew | Sound | Supervising Sound Editor |
Chris Hewitt | Crew | Crew | Post Production Assistant |
Brent Hutchins | Crew | Production | Production Manager, Production Supervisor |
Christina N. de Juan | Crew | Visual Effects | Visual Effects |
Willem Drees | Crew | Visual Effects | Visual Effects |
Colleen O'Hagan | Crew | Visual Effects | Visual Effects |
Hongseo Park | Crew | Visual Effects | Visual Effects |
Dave Walvoord | Crew | Visual Effects | Visual Effects Supervisor |
Leo Sanchez Barbosa | Crew | Visual Effects | Animation |
Gil Zimmerman | Crew | Camera | Director of Photography |
Tucker Scott Alleborn | Crew | Production | Production Coordinator |
Jennifer J. Pan | Crew | Crew | Supervising Technical Director |
Nelson Yokota | Crew | Art | Storyboard Artist |
Jed Schlanger | Crew | Production | Co-Producer |
Andrew Harkins | Crew | Visual Effects | Animation |
Pierre-Olivier Vincent | Crew | Art | Production Design |
 Brit DeLillo | Crew | Editing | Assistant Editor |
Natalia Cronembold | Crew | Editing | Associate Editor |
Tyler Shelton | Crew | Production | Production Supervisor |
Peter Litvack | Crew | Production | Production Supervisor |
Mary Melendez | Crew | Production | Production Supervisor |
Henri Hovhanesyan | Crew | Production | Production Supervisor |
Jessica Bayliss | Crew | Production | Production Supervisor |
Allison Bernardi Stauth | Crew | Production | Production Supervisor |
 Chris Palmer | Crew | Writing | Story Artist |
Lisa Curtis Saunders | Crew | Visual Effects | Pipeline Technical Director |
 Stephanie Ma Stine | Crew | Art | Storyboard Artist |
 America Ferrera | Cast | Actress | Astrid (voice) |
 Ashley Jensen | Cast | Actress | Phlegma (voice) |
 Cate Blanchett | Cast | Actress | Valka (voice) |
 Craig Ferguson | Cast | Actor | Gobber (voice) |
 David Tennant | Cast | Actor | Spitelout / Ivar the Whitless (voice) |
 F. Murray Abraham | Cast | Actor | Grimmel (voice) |
 Gerard Butler | Cast | Actor | Stoick (voice) |
 Gideon Emery | Cast | Actor | Trapper (voice) |
 James Sie | Cast | Actor | Chaghatai Khan (voice) |
 Jay Baruchel | Cast | Actor | Hiccup (voice) |
 Robin Atkin Downes | Cast | Actor | Ack (voice) |
 Ólafur Darri Ólafsson | Cast | Actor | Ragnar the Rock (voice) |
 Jonah Hill | Cast | Actor | Snotlout (voice) |
 Kieron Elliott | Cast | Hoark (voice) | |
 Kristen Wiig | Cast | Actress | Ruffnut (voice) |
 Christopher Mintz-Plasse | Cast | Actor | Fishlegs (voice) |
 Kit Harington | Cast | Actor | Eret (voice) |
 Justin Rupple | Cast | Actor | Tuffnut (voice) |
 AJ Kane | Cast | Actor | Young Hiccup (voice) |
 Julia Emelin | Cast | Actress | Griselda the Grevious (voice) |
| Person | Type | Job | Role(s) |
