| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Ann Knapp | Crew | Writing | Writer | 1 |
 Art Brown | Crew | Writing | Writer, Executive Producer | 11 |
 Douglas Sloan | Crew | Production | Executive Producer, Writer | 26 |
Gregg Taylor | Crew | Production | Executive In Charge Of Production | 26 |
Mark Hoffmeier | Crew | Writing | Writer | 1 |
Nico Marlet | Crew | Visual Effects | Character Designer | 26 |
Otis Van Osten | Crew | Sound | Sound Supervisor | 26 |
 Raman Hui | Crew | Visual Effects | Animation Director | 26 |
Robert Briggs | Crew | Art | Storyboard Artist | 9 |
Robert Brousseau | Crew | Crew | Post Production Supervisor | 21 |
 Scott Underwood | Crew | Art | Storyboard Artist | 2 |
Alexander Wu | Crew | Editing | Assistant Editor | 10 |
Ania Kamieniecki-O'Hare | Crew | Production | Casting | 26 |
Brandon Tyra | Crew | Production | Production Supervisor | 26 |
Chad Hammes | Crew | Production | Producer | 26 |
Christi Soper Hilt | Crew | Production | Casting | 26 |
David Jones | Crew | Visual Effects | Visual Effects Supervisor, Director | 14 |
Jason Oliver | Crew | Sound | Dialogue Editor | 26 |
 John Paesano | Crew | Sound | Music | 26 |
 Luis Grané | Crew | Visual Effects | Character Designer | 9 |
Peter Paul Bautista | Crew | Art | Storyboard Artist | 5 |
Robert Stone | Crew | Editing | Assistant Editor | 7 |
Conrad Schmidt | Crew | Visual Effects | Visual Development | 26 |
 Elaine Bogan | Crew | Directing | Director | 9 |
Ricky Roxburgh | Crew | Writing | Writer | 1 |
Lawrence Jonas | Crew | Production | Line Producer | 26 |
Jack C. Thomas | Crew | Writing | Staff Writer, Writer | 9 |
John Laus | Crew | Editing | Editor | 6 |
Kaleb Kern | Crew | Production | Production Coordinator | 26 |
John Romeo | Crew | Production | Production Accountant | 26 |
Nicholas Fumia | Crew | Production | Production Supervisor | 9 |
Heidi Jo Gilbert | Crew | Art | Storyboard Artist | 4 |
Jason William Scheier | Crew | Visual Effects | Visual Development | 1 |
Abe Brown | Crew | Production | Production Coordinator | 26 |
Lauren Prince | Crew | Production | Production Supervisor, Production Manager | 9 |
Myke Bakich | Crew | Art | Storyboard Artist | 1 |
Joel Fisher | Crew | Editing | Assistant Editor, Additional Editing | 11 |
John Tellegen | Crew | Writing | Writer, Staff Writer | 7 |
 Brook Chalmers | Crew | Production | Production Supervisor | 26 |
Wendy Sullivan | Crew | Art | Storyboard Artist | 9 |
David D. Au | Crew | Art | Storyboard Artist | 5 |
 Hyein Park | Crew | Art | Storyboard Artist | 5 |
Ian Rickett | Crew | Production | Production Assistant | 21 |
Lila Scott | Crew | Production | Production Assistant | 26 |
Douglas Britton | Crew | Writing | Writer | 1 |
Kenny Park | Crew | Art | Storyboard Artist | 2 |
 Jae Kim | Crew | Directing | Director | 7 |
Greg Rankin | Crew | Art | Storyboard Artist | 9 |
Zili Wang | Crew | Visual Effects | Simulation & Effects Artist | 1 |
F.M. De Marco | Crew | Writing | Writer, Staff Writer | 7 |
Jack Thomas | Crew | Writing | Writer, Staff Writer | 8 |
Jay Fox | Crew | Editing | Editor, Additional Editing | 9 |
Catherine Lombardo | Crew | Production | Production Coordinator | 26 |
Gregg Goldin | Crew | Production | Executive In Charge Of Production | 26 |
Graham Fisher | Crew | Editing | Assistant Editor | 22 |
Michael Laus | Crew | Editing | Assistant Editor | 21 |
Roger Pallan | Crew | Sound | Foley Supervisor | 26 |
Will Morey | Crew | Writing | Writers' Assistant, Writer | 25 |
Shaz Lym | Crew | Art | Storyboard Artist | 5 |
Elaine Figueroa | Crew | Production | Production Coordinator | 26 |
Ashley Morley | Crew | Production | Human Resources | 26 |
Ernesto Matamoros | Crew | Editing | Editor, Additional Editing | 9 |
Josh Johnson | Crew | Sound | Sound Editor | 26 |
Yang Chang | Crew | Production | Production Coordinator | 26 |
Dean Jackson | Crew | Editing | Assistant Editor, Additional Editing, Editor | 17 |
Jeffrey Rosen | Crew | Crew | Post Production Supervisor | 5 |
Michael MacAdams | Crew | Art | Storyboard Artist | 6 |
Drew Ng | Crew | Art | Storyboard Artist | 2 |
Santino Lascano | Crew | Visual Effects | Visual Development | 26 |
Jason Dorf | Crew | Art | Storyboard Artist | 10 |
Richard Hamilton | Crew | Writing | Writer | 1 |
Amy Jakovec | Crew | Production | Production Coordinator | 2 |
Zach Clairville | Crew | Production | Production Coordinator | 4 |
Todd Ammons | Crew | Art | Storyboard Artist | 4 |
Dave DiMatteo | Crew | Editing | Assistant Editor | 3 |
Jason Zurek | Crew | Art | Storyboard Artist | 4 |
F.M. De Marco | Crew | Writing | Staff Writer, Writer | 9 |
 Alan Shearman | Cast | Actor | Additional Voices (voice) | 13 |
 Alastair Duncan | Cast | Actor | Additional Voices (voice) | 13 |
 Alfred Molina | Cast | Actor | Viggo (voice) | 19 |
 America Ferrera | Cast | Actress | Astrid (voice) | 77 |
 Chris Edgerly | Cast | Actor | Gobber (voice) | 20 |
 Daisy Tormé | Cast | Actress | Additional Voices (voice) | 1 |
 David Faustino | Cast | Actor | Dagur (voice) | 28 |
 David Tennant | Cast | Actor | Spitelout (voice) | 12 |
 Djimon Hounsou | Cast | Actor | Drago (voice) | 1 |
 Edie Mirman | Cast | Actress | Additional Voices (voice) | 9 |
 Hakeem Kae-Kazim | Cast | Actor | Additional Voices (voice) | 1 |
 JB Blanc | Cast | Actor | Jarg (voice) | 1 |
 James Arnold Taylor | Cast | Actor | Additional Voices (voice) | 1 |
 Jay Baruchel | Cast | Actor | Hiccup (voice) | 78 |
 Jean Gilpin | Cast | Actress | Additional Voices (voice) | 3 |
 Jeff Bennett | Cast | Actor | Cleve (voice) | 1 |
 Jim Pirri | Cast | Actor | Additional Voices (voice) | 5 |
 Kyle T. Heffner | Cast | Actor | Additional Voices (voice) | 7 |
 Mae Whitman | Cast | Actress | Heather (voice) | 33 |
 Mark Hamill | Cast | Actor | Alvin (voice) | 2 |
 Matthew Wolf | Cast | Actor | Additional Voices (voice) | 1 |
 Mitch Carter | Cast | Actor | Additional Voices (voice) | 30 |
 Neil Dickson | Cast | Actor | Additional Voices (voice) | 9 |
 Nicholas Guest | Cast | Actor | Additional Voices (voice) | 6 |
 Nolan North | Cast | Actor | Iron Mason / Berthel (voice) | 1 |
 Paul Rugg | Cast | Actor | Savage (voice) | 9 |
 Paula J. Newman | Cast | Actress | Additional Voices (voice) | 14 |
 Peter Lavin | Cast | Additional Voices (voice) | 7 | |
 Rajia Baroudi | Cast | Actress | Additional Voices (voice) | 2 |
 Rose McIver | Cast | Actress | Atali (voice) | 3 |
 Scott Menville | Cast | Actor | Additional Voices (voice) | 2 |
 Steve Alterman | Cast | Actor | Additional Voices (voice) | 34 |
 Thomas F. Wilson | Cast | Actor | Bucket (voice) | 3 |
 Tom Kenny | Cast | Actor | Chicken Feed Salesman (voice) | 1 |
 Wendy Cutler | Cast | Actress | Additional Voices (voice) | 2 |
 Wendy Hoffmann | Cast | Actress | Additional Voices (voice) | 1 |
 Kelly Stables | Cast | Actress | Additional Voices (voice) | 1 |
 Lucas Grabeel | Cast | Actor | Gustav (voice) | 9 |
 Michael Goldstrom | Cast | Actor | Trader Johann (voice) | 18 |
 Peta Johnson | Cast | Additional Voices (voice) | 1 | |
 Adelaide Kane | Cast | Actress | Mala (voice) | 11 |
 Christopher Mintz-Plasse | Cast | Actor | Fishlegs / Thor Bonecrusher (voice) | 1 |
 T.J. Miller | Cast | Actor | Tuffnut / Gruffnut (voice) | 3 |
 Andre Robinson | Cast | Actor | Brant (voice) | 1 |
 Andree Vermeulen | Cast | Actress | Ruffnut / Agnut (voice) | 1 |
 Angela Bartys | Cast | Actress | Trader Lena (voice) | 1 |
 Zack Pearlman | Cast | Actor | Snotlout (voice) | 77 |
 Larissa Gallagher | Cast | Additional Voices (voice) | 1 | |
 Joanna Leeds | Cast | Actress | Additional Voices (voice) | 5 |
 Peter Falls | Cast | Actor | Additional Voices (voice) | 3 |
 Warren Sroka | Cast | Actor | Additional Voices (voice) | 3 |
 Emma Shannon | Cast | Actress | Brenda (voice) | 1 |
Brook Chalmers | Cast | Actor | Viking 2 (voice) | 1 |
Jacqueline Loeb | Cast | Additional Voices (voice) | 1 | |
Julie Falls | Cast | Additional Voices (voice) | 11 | |
 Holly Kagis | Cast | Minden (voice) | 3 | |
Daisy Thorne | Cast | Additional Voices (voice) | 1 | |
Christopher Flowers | Cast | Additional Voices (voice) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
