John Hasler (born in Barking, London, England, on 21 April 1974) is an English actor and voice actor who joined the English voice cast of Thomas & Friends in The Adventure Begins. He took over the roles of Thomas and Rheneas from Ben Small.
Hasler is best known for his appearance as T-Shirt in the children's TV series T-Bag. Other credits include "Gnomeo and Juliet" (animated by Arc Productions), "Toot the Tiny Tugboat", "Teenage Fairytale Dropouts", "Go Jetters", "The Legends of Treasure Island", and two of HiT Entertainment's other shows; "Mike the Knight" and "Fireman Sam".
Hasler left the series after production ended on Series 24, though he continued to voice Thomas for the official YouTube channel shorts and other promotional material until Thomas & Friends: All Engines Go took effect. However, he became a guest narrator for the Thomas & Friends Storytime podcast for the 80th anniversary and was also interviewed among other voice artists in the 80th Anniversary Podcast in 2025.
Voices
UK
- Thomas (2015-2021)
UK/US
- Rheneas (2016)
Online videos and additional content
Songs
Filmography
Films
Television
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Trivia
- He and his family attended the Blue Carpet premiere events of Sodor's Legend of the Lost Treasure on 12 July 2015, The Great Race on 22 May 2016 and Big World! Big Adventures! on 7 July 2018.
- As a child actor, Hasler co-starred in the 1984 film Breakout along with Simon Nash, who voiced Ten Cents in TUGS.
- Hasler is the second UK narrator to voice a character after Mark Moraghan, and the third overall after Michael Brandon and Mark Moraghan.
- From 2018 to 2021, when Thomas became the narrator, Hasler had been the only UK cast member to date not to narrate an episode for the US dub. Due to the twenty-fourth series being the final series of Thomas & Friends, he and Joseph May are the final narrators for the series in the UK and US dubs, respectively.
- He and Pierce Brosnan are the only UK narrators not to be from Liverpool.
- He and Lee Pressman both worked on T-Bag.
- According to an X conversation, Hasler's favourite project was Sodor's Legend of the Lost Treasure.[1]
Gallery
