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Mason Thames as Hiccup |
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Nico Parker as Astrid |
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Gerard Butler as Stoick |
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Nick Frost as Gobber |
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Gabriel Howell as Snotlout |
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Julian Dennison as Fishlegs |
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Bronwyn James as Ruffnut |
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Harry Trevaldwyn as Tuffnut |
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Murray McArthur as Hoark |
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Peter Serafinowicz as Spitelout |
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Naomi Wirthner as Gothi |
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Ruth Codd as Phlegma |
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Andrea Ware as Burnheart |
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Anna Leong Brophy as Retcha |
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Marcus Onilude as Snorti |
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Pete Selwood as Drül |
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Daniel-John Williams as Fungi |
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Kate Kennedy as Flatula |
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Selina Jones as Loogi |
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Nick Cornwall as Hürl |
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Nigel Shinnors as Viking (uncredited) |
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Dean DeBlois as Viking (uncredited) |
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Randy Thom as Toothless (voice) (uncredited) |
| Production | Adam Siegel | Producer |
| Production | Dean DeBlois | Producer |
| Production | Marc Platt | Producer |
| Directing | Dean DeBlois | Director |
| Writing | Dean DeBlois | Writer |
| Sound | John Powell | Original Music Composer |
| Camera | Bill Pope | Director of Photography |
| Costume & Make-Up | Lindsay Pugh | Costume Design |
| Art | Dominic Watkins | Production Design |
| Art | Daniel Birt | Set Decoration |
| Writing | Cressida Cowell | Book |
| Crew | Oleg Podobin | Stunts |
| Art | Mike Stallion | Art Direction |
| Production | Lucy Bevan | Casting Director |
| Editing | Wyatt Smith | Editor |
| Production | Chris Sanders | Executive Producer |
| Sound | Randy Thom | Sound Designer |
| Art | Thomas Brown | Art Direction |
| Art | David Doran | Art Direction |
| Art | Til Frohlich | Art Direction |
| Directing | Fraser Fennell-Ball | First Assistant Director |
| Crew | Ben Wright | Stunts |
| Art | Archie Campbell-Baldwin | Assistant Art Director |
| Art | Kerry-Ellen Maxwell | Standby Art Director |
| Sound | Paul Massey | Sound Re-Recording Mixer |
| Sound | Leff Lefferts | Supervising Sound Editor |
| Sound | Leff Lefferts | Sound Re-Recording Mixer |
| Sound | Brian Chumney | Supervising Sound Editor |
| Production | David Cain | Executive Producer |
| Production | Michael A. Connolly | Executive Producer |
| Art | Ryan Kearney | Textile Artist |
| Directing | Lizzie Pritchard | Script Supervisor |
| Visual Effects | Christian Manz | Visual Effects Supervisor |
| Visual Effects | Christopher Raimo | Visual Effects Producer |
| Visual Effects | François Lambert | Visual Effects Supervisor |
| Visual Effects | Andy Kind | Visual Effects Supervisor |
| Visual Effects | Glenn Melenhorst | Visual Effects Supervisor |
| Sound | David Farmer | Sound Effects Editor |
| Lighting | Jonathan Spencer | Chief Lighting Technician |
| Crew | Tom Hannibal | Visual Effects Editor |
| Costume & Make-Up | Alessandro Bertolazzi | Hair Designer |
| Costume & Make-Up | Alessandro Bertolazzi | Makeup Designer |
| Camera | Karsten Bloch Jacobsen | "A" Camera Operator |
| Camera | Karsten Bloch Jacobsen | Steadicam Operator |
| Production | Roy Lee | Executive Producer |
| Visual Effects | Benoît Chieusse | Compositing Artist |
| Visual Effects | Glen McIntosh | Animation Supervisor |
| Sound | Heikki Kossi | Foley Artist |
| Crew | Nikita Mitchell | Stunts |
| Crew | Batu Sener | Additional Music |
| Crew | Leonard Woodcock | Stunts |
| Production | Chris Mylordos | Production Coordinator |
| Production | Doug Davison | Executive Producer |
| Sound | Emily Goglia | Vocals |
| Visual Effects | Robert Allman | Visual Effects Supervisor |
| Directing | Aaron Gordon | Third Assistant Director |
| Production | Katie Byles | Unit Production Manager |
| Visual Effects | Kaya Jabar | Pre-Visualization Supervisor |
| Directing | Josie Morgan | Second Assistant Director |
| Directing | Liberty Cheesman | Second Second Assistant Director |
| Visual Effects | Terry Palmer | Special Effects Supervisor |
| Art | Andrew Munro | Supervising Art Director |
| Crew | Rebecca Adams | Post Production Supervisor |
| Production | Kieran Burns | Unit Manager |
| Production | David Cain | Unit Production Manager |
| Production | Jón Hammer | Production Manager |
| Production | Ólafur Ásgeir Jónsson | Unit Production Manager |
| Production | Danielle Stanners | Production Supervisor |
| Art | Shadé Addams | Graphic Designer |
| Art | Anaïs Chareyre-Méjan | Graphic Designer |
| Art | Sophie Donnelly | Set Decorating Coordinator |
| Art | Caoimhe McNulty | Set Decorating Coordinator |
| Production | Lucy Downes | Casting Associate |
| Production | May Evans | Casting Assistant |
| Costume & Make-Up | Rachael Blair | Assistant Costume Designer |
| Costume & Make-Up | Caroline Hill | Costume Supervisor |
| Costume & Make-Up | Sophie Howard | Assistant Costume Designer |
| Costume & Make-Up | Anna Reynolds | Assistant Costume Designer |
| Editing | Esther Bailey | Assistant Editor |
| Editing | Carlos Castillon | Assistant Editor |
| Editing | Thomas Lane | First Assistant Editor |
| Production | Mauro Crolla | Assistant Location Manager |
| Production | Steve Hart | Location Manager |
| Production | Shona McGuigan | Assistant Location Manager |
| Production | David McKee | Location Manager |
| Production | Caolán McNally | Location Assistant |
| Sound | Bill Bernstein | Music Editor |
| Sound | Simon Changer | Music Editor |
| Production | Phillip McGonigle | Assistant Production Coordinator |
| Production | Shannon Quigley | Assistant Production Coordinator |
| Art | Nic Benns | Title Designer |
| Art | Dean Wares | Title Designer |
| Visual Effects | Kayn Garcia | Animation Supervisor |
| Visual Effects | Jean-Denis Haas | Animation Supervisor |
| Visual Effects | Meena Ibrahim | Animation Supervisor |
| Visual Effects | Nathan McConnel | Animation Supervisor |
| Visual Effects | Nicholas Tripodi | Animation Supervisor |
| Crew | Tamara Chanel White | Stand In |
| Camera | Kristi Gilligan | Second Assistant "A" Camera |
| Art | Tom Whitehead | Art Direction |
| Visual Effects | Austin Aplin | Visual Effects Producer |
| Visual Effects | Steven O'Connor | Compositing Supervisor |
| Writing | William Davies | Characters |
