He plays primarily as a Midfield. He stands at 180cm tall and weighs 67kg. His preferred foot is Right.

His most recent move was a from Plabennec to AG Plouvorn on 2024-07-01.

Across 2 appearances in the Coupe de France 2025-2026, Théo Guillou registered 0 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.