 | Eddie Redmayne als Dug (voice) |
 | Tom Hiddleston als Lord Nooth (voice) |
 | Maisie Williams als Goona (voice) |
 | Timothy Spall als Chief Bobnar (voice) |
 | Miriam Margolyes als Queen Oofeefa (voice) |
 | Rob Brydon als Message Bird / Brian / Bryan / Gonad the Gaul (voice) |
 | Kayvan Novak als Dino / Jurgend (voice) |
 | Richard Ayoade als Treebor (voice) |
 | Selina Griffiths als Magma / Additional Voice (voice) |
 | Johnny Vegas als Asbo (voice) |
 | Mark Williams als Barry (voice) |
 | Gina Yashere als Gravelle (voice) |
 | Rich Webber als Grubup (voice) |
 | Simon Greenall als Eemak / Thongo / Additional Voice (voice) |
 | Nick Park als Hognob (voice) |
 | Luke Walton als Hügelgraber / Additional Voice (voice) |
| Antony Bayman als Additional Voices (voice) |
| Richard Beek als Additional Voices (voice) |
| Tom Doggart als Additional Voices (voice) |
| Tim Hands als Additional Voices (voice) |
| Adrian Rhodes als Additional Voices (voice) |
| Victoria Stevens als Additional Voices (voice) |
 | Ben Whitehead als Additional Voices (voice) |
| Nick Park | Director |
| Richard Edmunds | Art Direction |
| Sim Evan-Jones | Editor |
| Nick Park | Story |
| James Higginson | Screenplay |
| Mark Burton | Screenplay |
| Mark Burton | Story |
| Richard Beek | Producer |
| David Sproxton | Producer |
| Carla Shelley | Producer |
| Peter Lord | Producer |
| Nick Park | Producer |
| Joe Maxwell | Assistant Camera |
| Chris Johnson | Still Photographer |
| Harry Gregson-Williams | Original Music Composer |
| Will Becher | Animation Director |
| Natascha Wharton | Executive Producer |
| Ben Barrowman | First Assistant Director |
| Paul Kewley | Co-Executive Producer |
| Loyd Price | Animation Supervisor |
| Didier Lupfer | Executive Producer |
| Tom Barnes | Technical Supervisor |
| Sean Clarke | Co-Executive Producer |
| Alicia Gold | Executive Producer |
| Merlin Crossingham | Animation Director |
| Adrian Rhodes | Supervising Sound Editor |
| Gail Stevens | Casting |
| Ron Halpern | Executive Producer |
| Dave Alex Riddett | Director of Photography |
| Matt Perry | Production Design |
| Kate Anderson | Character Designer |
| Howard Jones | VFX Supervisor |
| Kerry Lock | Co-Executive Producer |
| Ben Roberts | Executive Producer |
| Zoë Starzak | Production Manager |
| Danny Perkins | Executive Producer |
| Tom Howe | Original Music Composer |
| Emma Hanson | Second Assistant Director |
| Sarah Hullah | Third Assistant Director |
| Georgina Reynolds | Second Assistant Director |
| Giorgio Grecu | Concept Artist |
| Gavin Lines | Graphic Designer |
| Kris Pearn | Storyboard Artist |
| Aurélien Predal | Concept Artist |
| Chris Burdon | Sound Re-Recording Mixer |
| Danny Hambrook | Sound Recordist |
| Tim Hands | ADR & Dubbing |
| Gilbert Lake | Sound Re-Recording Mixer |
| Sotiris Loukatos | Sound Re-Recording Mixer |
| Richard Hosken | Gaffer |
| Fawn Mead | Production Coordinator |
| Albert Testani | Production Coordinator |
| Peter Sallis | In Memory Of |
| Dave Osmand | In Memory Of |
| Charles Copping | Director of Photography |
| Paul Smith | Director of Photography |
