| Film |
|---|
| Year | Film | Role | Notes |
|---|
| 1987 | Cariani and the Courtesans | Teresa | |
| 1990 | Frankenstein's Baby | Voluntary Worker | |
| 1994 | The Healer | Ann Meadrow | |
| 1995 | Spectromania-Massage | Wendy Byatt | |
| Massage | Wendy Byatt | |
| 1998 | Touch and Go | Laura Aldridge | |
| 2001 | Gentlemen's Relish | Jane Davidson | |
| 2002 | The Project | Sian | |
| 2024 | Winnie-the-Pooh: Blood and Honey 2 | Mary Darling | |
| 2025 | Peter Pan's Neverland Nightmare | Mary Darling | [2] |
| Television |
|---|
| Year | Title | Role | Notes |
|---|
| 1986 | The Return of Sherlock Holmes | Janet Tregallis | Episode: "The Musgrave Ritual" |
| 1989 | After the War | Jackie Neville | Episode: "French and English" |
| 1990 | The Bill | Paula Reed | Episode: "Jack-the-Lad" |
| 1995 | Coogan's Run | Debs | Episodes: "Thursday Night Fever" and "Natural Born Quizzers"; credited as "Theresa Banham" |
| Roughnecks | Tessa Buckingham | 13 episodes - lead role |
| Ghosts | Wendy Byatt | Episode: "Massage" |
| 2000 | Monsignor Renard | Clara Baquet | 4 episodes |
| 2003 | Red Cap | Linda Cosgrove | Episode: "Esprit de Corps" |
| Trust | Teresa Bradley | 3 episodes |
| 2004 | Rose and Maloney | Davina | Episodes: "Katie Phelan: Part 1 & 2" |
| 2006 | Vincent | Barbara Knight | Episode: "The Bodies Beneath" |
| 2007 | Trial & Retribution | Sheila Field | Episode: "Closure: Part 1" |
| Dalziel and Pascoe | Dr. June Gray | Episodes: "Project Aphrodite: Part 1 & 2" |
| 2009 | Robin Hood | Rebecca | Episodes: "Cause and Effect", "Lost in Translation", "Sins of the Father" and "Something Worth Fighting For: Part 1" |
| Doctor Who | The Governor | Episode: "The End of Time (Part 1)" |
| 2014 | Vera | Lorna Underwood | Episode: "Protected" |
| 2019 | The Crown | Mary Wilson | Episode: "Olding" |
|
