Filmography32 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2020 | The A-Z of EurovisionMovie | Self - Contestant (archive footage) | 48 |
| 2017 | Kingsman: The Golden CircleMovie | Michelle | 45 |
| 2017 | Richard Osman's House of GamesSeries | Self - Contestant | 45 |
| 2017 | Harry Hill's Alien Fun CapsuleSeries | Self | 45 |
| 2015 | Kingsman: The Secret ServiceMovie | Michelle Unwin | 43 |
| 2013 | Tipping Point: Lucky StarsSeries | Self - Contestant | 41 |
| 2011 | Famous, Rich And In The Slums with Comic ReliefSeries | Herself | 39 |
| 2008 | Celebrity JuiceSeries | Self | 36 |
| 2008 | All Star Mr & MrsSeries | — | 36 |
| 2007 | ForgivenMovie | Kate | 35 |
| 2004 | Who Do You Think You Are?Series | Self | 32 |
| 2004 | The Baby Juice ExpressMovie | Trixie (as Samantha Janus) | 32 |
| 2003 | The Afternoon PlaySeries | Emma Priestley | 31 |
| 2001 | Judge John DeedSeries | — | 29 |
| 2001 | Friday Night with Jonathan RossSeries | Self | 29 |
| 2001 | Richard & JudySeries | Self | 29 |
| 1999 | Loose WomenSeries | Self | 27 |
| 1998 | Imogen's FaceMovie | Imogen | 26 |
| 1998 | Up 'n' UnderMovie | Hazel Scott | 26 |
| 1998 | Babes in the WoodSeries | Ruth | 26 |
| 1998 | Liverpool 1Series | DC Isobel de Pauli | 26 |
| 1996 | Silent WitnessSeries | DI Kate Ashton | 24 |
| 1996 | TFI FridaySeries | — | 24 |
| 1995 | Game OnSeries | Amanda 'Mandy' Wilkins | 23 |
| 1994 | Pie in the SkySeries | Nichola | 22 |
| 1993 | Shooting StarsSeries | Self | 21 |
| 1990 | Jekyll & HydeMovie | Young Maid (Margaret) (as Samantha Janus) | 18 |
| 1989 | Press GangSeries | Waitress | 17 |
| 1985 | EastEndersSeries | Ronnie Mitchell | 13 |
| 1984 | The BillSeries | — | 12 |
| 1979 | MinderSeries | Marian | 7 |
| 1978 | An Audience with...Series | Self | 6 |