The Comedic Genius Behind Tuffnut: Everything To Know About Harry Trevaldwyn, The Live-Action Star

The casting of the live-action adaptation of the beloved animated franchise, How to Train Your Dragon (HTTYD), has been one of the biggest news stories in Hollywood recently, and fans are eager to know who will bring the eccentric, dim-witted, and hilarious Viking twin, Tuffnut Thorston, to life. As of today, December 12, 2025, the role has been officially confirmed to go to the rising English actor, comedian, and writer, Harry Trevaldwyn, a surprising yet inspired choice that signals a fresh comedic direction for the character.

Trevaldwyn’s casting is a significant moment for the highly anticipated 2025 film, which is being directed by Dean DeBlois, the original writer and director of the animated trilogy. While the animated Tuffnut was voiced by T.J. Miller, Trevaldwyn will step into the live-action shoes alongside Bronwyn James, who plays his equally chaotic twin sister, Ruffnut Thorston. This article dives deep into the profile of the man set to become the next Berkian prankster and a key member of the Dragon Riders.

Harry Trevaldwyn: Complete Biographical Profile

Harry David Trevaldwyn is a distinctive talent from the UK comedy scene, known for his unique observational humor and memorable supporting roles in both film and television. His transition to a major Hollywood blockbuster like the How to Train Your Dragon live-action movie marks a significant milestone in his career.

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• Full Name: Harry David Trevaldwyn
• Date of Birth: February 14, 1994
• Age (as of 2025): 31 years old
• Place of Birth: Oxford, England, United Kingdom
• Nationality: British
• Occupation: Actor, Comedian, Writer
• Education: Attended the University of Bristol
• Known For: His roles in the comedy series Ten Percent and the Netflix meta-comedy film The Bubble.
• Upcoming Role: Tuffnut Thorston in How to Train Your Dragon (2025)

A Star on the Rise: Trevaldwyn's Journey from Comedy to Berk

Unlike some of his blockbuster co-stars, Harry Trevaldwyn’s career has been built steadily through the world of British comedy and independent film. His background as a comedian and writer is crucial to understanding why he is the perfect fit for a character as inherently comedic as Tuffnut.

Trevaldwyn first gained attention for his stand-up and sketch comedy work, often showcasing an awkward, deadpan delivery that resonates well with modern audiences. This style is expected to translate perfectly to Tuffnut’s brand of Viking mischief, which is often characterized by a lack of self-awareness and an obsession with the bizarre.

Key Roles That Defined His Career

Before landing the role of Tuffnut, Trevaldwyn was already a familiar face on British television and streaming services. His filmography demonstrates a clear talent for character-driven comedy:

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• The Bubble (2022): He played Gunther, a role in the Judd Apatow-directed Netflix comedy about actors trapped in a pandemic bubble while filming a movie. This role showcased his ability to handle big-budget, ensemble comedy.
• Ten Percent (2022): In this British remake of the French series Call My Agent!, Trevaldwyn played Ollie Rogers, a recurring role that cemented his reputation in TV comedy.
• The Outlaws (2021-2022): He appeared in the critically acclaimed series created by Stephen Merchant, further establishing his presence in high-quality British television.
• Smothered (2024): He took on the role of Jordan in this Sky comedy series, continuing his streak of strong comedic performances.
• The Acolyte (Upcoming): Trevaldwyn is also slated to appear in the highly anticipated Disney+ Star Wars series, The Acolyte, playing the character Mog Adana, indicating his rising profile across major global franchises.

The Thorston Twins: Harry Trevaldwyn and Bronwyn James

The dynamic between Tuffnut and his twin sister, Ruffnut, is the source of some of the original franchise's best comedic moments. Their constant bickering, shared lack of intelligence, and co-ownership of the two-headed Zippleback dragon, Barf and Belch, are essential elements of the story.

Harry Trevaldwyn will be acting opposite English actress Bronwyn James, who has been cast as Ruffnut Thorston. James is known for her roles in shows like Harlots and the upcoming film adaptation of Wicked. The pairing of these two English comedic talents is a deliberate choice by director Dean DeBlois to capture the unique, chaotic energy of the twins.

Fans are particularly curious to see how Trevaldwyn, with his more understated comedic style, will bounce off James’s energy to recreate the iconic sibling rivalry. Their chemistry will be a cornerstone of the film's lighter moments, providing a necessary foil to the dramatic arcs of Hiccup (Mason Thames) and Astrid (Nico Parker).

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What Trevaldwyn’s Casting Means for the Live-Action Film

The choice of Harry Trevaldwyn for Tuffnut is indicative of the overall casting strategy for the live-action How to Train Your Dragon. The production is clearly focusing on finding actors who embody the spirit and comedic timing of the characters, rather than just seeking established A-list stars.

The film is set to be released in 2025, and the cast includes a blend of experienced veterans and fresh faces. Trevaldwyn joins a stellar ensemble that includes:

• Mason Thames as Hiccup Horrendous Haddock III
• Nico Parker as Astrid Hofferson
• Gerard Butler reprising his role as Stoick the Vast (the only voice actor from the original to return)
• Nick Frost as Gobber the Belch
• Julian Dennison as Fishlegs Ingerman
• Gabriel Howell as Snotlout Jorgenson

Trevaldwyn’s background as a writer and comedian suggests he may bring a level of improvisation and nuance to the role, ensuring that the live-action Tuffnut is not merely a copy of the animated version, but a fresh, three-dimensional character. His comedic timing, honed on stage and in multiple TV series, is expected to make Tuffnut’s often nonsensical dialogue even more memorable and endearing.

The new film, which is a Universal Pictures production, is scheduled to start filming soon, with the entire cast expressing immense excitement about bringing the world of Berk and its dragons to a new generation. Harry Trevaldwyn’s portrayal of Tuffnut Thorston is undoubtedly one of the most anticipated performances, promising to deliver the laughs and heart that fans expect from the franchise.