Sian Reese-WilliamsSian Reese-Williams is a Welsh actress, best known for playing detective Cadi John in three series of Hidden.Movies (1)The Beautiful Game (2024)TV (5)Still Waters (2025)Hidden (2018)Requiem (2018)Wolf (2023)The Light in the Hall (2022)Genres Sian Reese-Williams works inassociation footballcrimecrime thrillerdramadrama fictionsportMore about Sian Reese-WilliamsWikipedia