Movies logged featuring Mark Williams| Creating the World of Harry Potter, Part 2: Characters | Mike Newell, Chris Columbus, Alfonso Cuarón, David Yates | | No | N/A |
| Fast Show Live, The | Bob Spiers, Roxana Silbert | 1998 | No | N/A |
| Dick Whittington: The ITV Pantomime | Geoff Posner | 2002 | No | N/A |
| Harry Potter 20th Anniversary: Return to Hogwarts | Eran Creevy, Giorgio Testi, Joe Pearlman, Casey Patterson | 2022 | No | N/A |
| Super Villans | | 2022 | No | N/A |
| Heidi: Queen of the Mountain | Bhavna Talwar | 2017 | No | N/A |
| Surprised by Oxford | Ryan Whitaker | 2023 | No | N/A |
| Effects of Lying, The | Isher Sahota | 2023 | No | N/A |
| Robin and the Hoods | Phil Hawkins | 2024 | No | N/A |
| Dream Hacker | Richard Colton | | No | N/A |