Mason Thames is 18 years old as of February 2026.

Quick Scoop: How Old Is Mason Thames?

  • Mason Thames was born on July 10, 2007.
  • That makes him 18 years old right now (already past his 18th birthday in 2025).
  • He’s known for standout roles in The Black Phone and upcoming projects like How to Train Your Dragon and Regretting You.

Age, Timeline, and “Right Now” Context

Here’s a simple timeline to place his age in context:

  1. Born: July 10, 2007.
  1. Breakout with The Black Phone : Filmed and released while he was in his mid-teens.
  1. By 2024–2025, most bios list him as 17 years old.
  1. After his July 10, 2025 birthday, he turned 18, which is his current age in early 2026.

So if you’re checking “how old is Mason Thames” today , in early 2026, the up‑to‑date answer is: 18 years old.

Information gathered from public forums or data available on the internet and portrayed here.