The live-action cast of the 2025 film "How to Train Your Dragon" includes:

• Mason Thames as Hiccup
• Nico Parker as Astrid
• Gerard Butler reprising his role as Stoick the Vast
• Nick Frost as Gobber
• Julian Dennison as Fishlegs
• Gabriel Howell as Snotlout
• Bronwyn James as Ruffnut
• Harry Trevaldwyn as Tuffnut
• Ruth Codd as Phlegma
• Murray McArthur as Hoark
• Andrea Ware as Burnheart
• Marcus Onilude as Snorti

The film is directed by Dean DeBlois, who also directed the original animated trilogy, aiming to keep the spirit of the original while using live-action to create a more immersive and grounded world with photorealistic dragons

. The production involved sophisticated animatronics and gimbals to simulate the experience of riding dragons, helping actors like Mason Thames (Hiccup) interact convincingly with the dragons on set rather than just reacting to CGI placeholders

. This cast brings a mix of returning voices from the animated films and new actors to bring the characters to life in a live-action setting, with some debate among fans about casting choices, particularly regarding the physical resemblance to the original characters