| Year | Title | Role | Notes |
| 2009 | Comedy Showcase | Various roles | Series 2; episode 6: "Girl Friday" |
| Things Talk | Dan's Girlfriend | Television film |
| 2009–2010 | Reggie Perrin | Vicky | Series 1 & 2; 12 episodes |
| 2010 | Meet the Parents | Sister | Series 1; episode 6: "Ex-Army" |
| 2010–2013 | Him & Her | Laura | Main role. Series 1–4; 24 episodes British Academy Television Award for Best Female Comedy Performance (nominated) |
| 2011 | Two Pints of Lager and a Packet of Crisps | Hazel | Series 9; episode 5: "Shagger" |
| Comedy Showcase | Colette | Series 3; episode 3: "The Fun Police" |
| Mongrels | Rickshaw Mother | Series 2; episode 2: "Kali and the Rickshaw Inferno" |
| 2013 | Love Matters | Waitress | Episode 4: "Aphrodite Fry" |
| Comedy Feeds | Various | BBC sketch show. Series 2; episode 3: "Kerry". Also writer |
| 2014 | Drifters | Chelsea | Series 2; episode 5: "Hen Don't" |
| Give Out Girls | Marilyn | Episodes 1–6 |
| Russell Howard's Good News | Mother of Baby | Series 9; episode 3 |
| 2015 | Doc Martin | Alexandra Lucas | Series 7; episode 6: "Other People's Children" |
| Crackanory | Parent (Thora) / Clara Winkleface | Series 3; episodes 2 & 4: "The Catchment Area" & "Abbatnoir" |
| A Gert Lush Christmas | Julie Colman | Television film |
| 2015, 2017 | Drunk History | Herself - Drunk Storyteller | Series 1; episodes 1 & 6, and series 3; episode 4 |
| 2016 | Murder in Successville | Katy Perry | Series 2; episode 5: "Head, Shoulders, Knees & Toes" |
| Borderline | Stacey Allen | Series 1; episode 2: "The Hens" |
| Young Hyacinth | Hyacinth | One-off prequel to Keeping Up Appearances |
| We the Jury | Fiona | Pilot episode |
| 2016–2018 | Witless | Leanne | Main character. Series 1–3; 15 episodes |
| 2017 | Murder in Successville | Madonna | Series 3; episode 3: "I Saw a Monster!" |
| Would I Lie to You? | Herself - Contestant | Series 11; Christmas special |
| 2018 | Judge Romesh[5] | Herself - Court Clerk | Series 1; episodes 1–10 |
| Urban Myths | Marsha Hunt | Series 2; episode 2: "Backstage at Live Aid" |
| 2019 | Four Weddings and a Funeral | Poppy | Mini-series; episodes 4 & 6: "The Winner Takes It All" & "Lights, Camera, Wedding" |
| 2020 | The Trouble with Maggie Cole | Kelly Roberts | Episodes 1–3, 5 & 6 |
| Two Weeks to Live | Beth | Episodes 3–6 |
| Finding Joy | Christie | Series 2; episodes 1–6 |
| 2021 | Russell Howard: Lubricant | Herself | Netflix special |
| Ted Lasso | Sarah Coombes | Season 2; episode 9: "Beard After Hours" |
| The Outlaws | Trace | Series 1; episode 6 |
| 2022 | Richard Osman's House of Games | Herself - Contestant | Series 6; episodes 21–25 (week 5) |
| 2023 | Beyond Paradise | Cleo Davenport | Series 1; episode 5 |
| Black Ops | Jen | Series 1; episode 1 |
| 2024–2025 | Waterloo Road | Serena Michelle Davies | Recurring role. Series 13–15; 8 episodes |