Mason Thames


Mason Thames is an American actor. He made his feature film debut as the lead role in the horror film The Black Phone and its 2025 sequel. He gained wider recognition for his roles in How to Train Your Dragon and Regretting You.

Early life

Thames was born on July 10, 2007, in Dallas, Texas. He was raised in McKinney and attended school in Prosper.

Career

Thames made his acting debut in the 2017 short film After Omelas as Liam. He was featured in three episodes of the first season of the Apple TV+ series For All Mankind in 2019. Thames played the lead role in Scott Derrickson's horror film The Black Phone. The role garnered him widespread acclaim.
On casting Thames over hundreds of other applicants, Derrickson stated that "he has a gift that very few actors, even adult professional actors, have, which is the ability to truthfully and emotionally process every moment, one shot at a time, without overacting. It's in his eyes and in his countenance, and his ability to do that in an honest, real way is something you can't teach." He reprised his role in the sequel Black Phone 2. Thames also featured as a younger version of Cordell Walker in the first two seasons of Walker. He starred in the comedy film Incoming.
Thames starred in David Henrie's independent film Monster Summer. He also starred as Hiccup Horrendous Haddock III in the 2025 live-action remake of How to Train Your Dragon. He is expected to return in its sequel, which is scheduled to be released in 2027. In mid-2025, Thames joined the cast of two comedy films, New Years Rev and The Shitheads.

Filmography

Film

YearTitleRoleNotes
2017After OmelasLiamShort film
2021The Black PhoneFinney Blake
2024IncomingBenj Nielsen
2024Monster SummerNoah Reed
2025How to Train Your DragonHiccup Horrendous Haddock III
2025New Years Rev
2025Black Phone 2Finney Blake
2025Regretting YouMiller Adams
2026The ShitheadsSheridan
2027How to Train Your Dragon 2Hiccup Horrendous Haddock IIIFilming

Television

Accolades