Sian Reese-Williams Filmography
| 2026 | Waiting for the Out (TV Series) · as Laura Holt |
| 2024 | The Beautiful Game · as Sian |
| 2024 | Sexy Beast (TV Series) · as Evelyn Bartlett |
| 2023 | Wolf (2023) (TV Series) · as Di Maia Lincoln |
| 2023 | Y Swn · as Margaret Thatcher |
| 2022 | The Light in the Hall (TV Series) · as Caryl |
| 2022 | The Chelsea Detective (TV Series) · as Sylvie Wix |
| 2020 | Justine · as Leanne |
| 2019 | Pili Pala (TV Series) · as Sara |
| 2018 | Hidden (2018) (TV Series) · as Di Cadi John |
| 2018 | Requiem (TV Series) · as Trudy Franken |
| 2014 | 35 Diwrnod (TV Series) · as Sara |
| 2013 | Hinterland (TV Series) · as Manon |
| 2012 | Line of Duty (TV Series) · as Ps Jane Cafferty |
| 2011 | Vera (TV Series) · as Beth Draper |
| 2011 | Harry Hill's TV Burp: The Best Bits · as Gennie Walker |
| 1999 | Holby City (TV Series) · as Jodie Rodgers |
| 1996 | Silent Witness (TV Series) · as Tina Harcourt |
| 1972 | Emmerdale (TV Series) · as Genesis Walker |
Shutter Speed · as Fi |
| 2024 | Hunting Mr Nice: The Cannabis Kingpin (TV Series) · as Self - Narrator (voice) |
| 2002 | Celebrity Mastermind (TV Series) · as Self |
| 1999 | Loose Women (TV Series) · as Self |
Shutter Speed · as Executive Producer |