Thomas Gillier

Giller came to the Universidad Católica youth system at the age of 11. Gillier made his debut with the first team in a friendly match against the Argentine club River Plate on 9 September 2023. At league level, Gillier made his professional debut in a match against Ñublense on 23 February 2024. On 2 July 2025, Gillier moved to Italy and signed with Bologna for five seasons. On 8 July, he joined on loan to Major League Soccer club CF Montréal until the end of the 2025 season with an option to extend for the next season. On 5 August, Gillier made his debut with Montreal, where he stopped an early penalty kick before giving up two goals in a 2–1 loss to Club Puebla of Liga MX.

Gillier received his first call up to the Chile senior team for the friendly match against Panama on 8 February 2025. Later, he was called up to the 2026 FIFA World Cup qualification matches in September of the same year.

As of match played 10 February 2025

Giller was born in Las Condes, Santiago city, Chile, to a French father and a Chilean mother, both died in 2024. His mother, Claudia Correa Bilbao, was a noted plastic artist and his father was a political scientist. His paternal grandmother was born in Algeria. Gillier speaks French.