Kat Sadler (born 1994) is a British comedian, actress, and writer. She is best known for writing and starring in the BBC Three comedy drama Such Brave Girls.

Early life and education Sadler was born in 1994 and is from Sutton, London. Her mother is a personal trainer. Sadler has a younger sister, actress Lizzie Davidson, who also plays her sister in Such Brave Girls. Sadler's family experienced financial struggles whilst she was growing up, and she describes the family environment as "tempestuous".

Sadler studied film and literature at Warwick University. Whilst there, she would write sketches for the comedy society and perform stand-up comedy.

Sadler is her stage name with Davidson being her family name.

Career In 2019, Sadler was awarded the BBC comedy writing bursary and became the in-house comedy writer for BBC Studios.

Sadler was a writer on The Mash Report and won the BBC Radio Comedy Writers Bursary in 2019. Her writing credits also include Joe Lycett's Got Your Back for Channel 4, The Jonathan Ross Show for ITV, Newsjack for BBC Radio 4 Extra and Frankie Boyle's New World Order for BBC Two, The Now Show and The News Quiz for BBC Radio 4, and Hypothetical and Mel Giedroyc: Unforgivable for Dave.

Such Brave Girls At the start of 2020, Sadler had deteriorating mental health, experiences she drew from for the BBC Three and Hulu sitcom Such Brave Girls (2023) which she wrote and starred in alongside her real life sister Lizzie Davidson.

Discussing the 2021 pilot episode, Sadler said that:"everything we joke about in the show is from a place of lived experience. I wish I could say this is a heart-warming show about overcoming trauma, but that would be a lie. It’s about three toxic, damaged egomaniacs manipulating the world and each other for their own personal gain, vengeance and glory…just like in Little Women." Sadler said that she wanted to create a character like herself – "I'm sort of obsessed with my own trauma, and love telling people...and I wanted to do a more tongue-in-cheek version of that really" She drew on the experience of living at home with her mum and sister when she had to move home during lockdown.

At the start of filming the series in 2023, Sadler described the show as “a family sitcom about trauma, but it’s more about us being narcissistic losers who are pathetically obsessed with what people think about us.” The BBC described the show as "an unflinching, often absurd, and very funny look at a mother and her two grown up children try to cope with their own emotional and financial fragility, whilst they are living under the same roof; a series not for the faint-hearted, or the easily offended." After the second series was broadcast, a third series was commissioned in May 2026.

Awards +YearAwardCategoryNomineeResultRef.2024Chortle AwardsBest TV ShowSuch Brave GirlsBAFTA Television Craft AwardsEmerging Talent: FictionKat SadlerRoyal Television Society Programme AwardsBest Female Comedy PerformanceKat SadlerBest Scripted ComedySuch Brave GirlsBroadcasting Press Guild AwardsBest ComedySuch Brave GirlsBest WriterKat SadlerBPG Breakthrough Talent AwardBritish Academy Television AwardsBest Scripted ComedySuch Brave Girls2026Royal Television Society Programme AwardsBest Scripted ComedySuch Brave GirlsWriter - ComedyKat SadlerBAFTABest Comedy WriterKat Sadler Sadler has twice been nominated for the BBC New Comedian of the Year award.

Personal life Sadler is queer.

Sadler has experience of mental health issues. The idea for Such Brave Girls came out of her experience of calling her sister from hospital and told her she'd been sectioned after twice trying to take her own life, and her sister responded by revealing she was £20,000 in debt, then they both laughed. When the first series came out, Sadler lost her best friend to suicide, which "gave me real fire to talk about it [the mental health system]"

Filmography

Television +YearTitleChannelRoleOther RoleNotesRef.2018-2019The Mash ReportBBC TwoWriterSeries 1, Episode 8; Series 2, Episode 6; Series 3, Episodes 3, 5.2019-2020Frankie Boyle's New World OrderWriterSeries 3, Episode 1, Special; Series 4, Episode 1, Special.2020-2021HypotheticalU&DaveWriter (additional material)Series 2, Episodes 3, 4; Series 3, Episode 22020-2021The Jonathan Ross ShowITV1WriterSeries 16, Episode 7; Series 17, Episodes 2, 3, 4, 82021Attack Of The Hollywood Clichés!NetflixWriterJoe Lycett's Got Your BackChannel 4Writer (additional material)Series 3, Episodes 7, 82022Mel Giedroyc: UnforgivableU&DaveWriter (additional material)Series 2, Episodes 1–8Tell Me EverythingITV2Co-WriterSeries 1, Episode 52023–presentSuch Brave GirlsBBC ThreeJosieCreator, Writer, Executive Producer

Radio +YearTitleStationRoleOther NotesRef.2018BBC New Comedy AwardBBC Radio 4HerselfEpisode 2: "Heat 2 - London"2018-2019The News Quiz Writer (additional material)Series 98, Episodes 2, 3, 5, 7; Series 99, Episodes 1–8; Series 100, Episodes 1, 5, 7;WriterSeries 101, Episodes 6, 72019-2021NewsjackBBC Radio 4 ExtraWriterSeries 20, Episodes 2, 3, 4, 6 Series 21, Episodes 1, 2, 3, 4, 6 Series 22, Episodes 1, 5; Series 23, Episode 2; Series 24, Episode 4Script Editor Series 22, Episode 6; Series 23, Episodes 3, 4; Series 24, Episode 32019Newsjack Unplugged WriterSeries 3, Episodes 1–8; Series 4, Episodes 2–8The Now ShowBBC Radio 4Writer (additional material)Series 54, Episodes 1, 5, 6, 7; Series 55, Episodes 4, 5.V.I.P R.I.PWriterEpisodes 1, 22020Alex Edelman's Peer GroupWriter (additional material)Series 3, Episodes 1–42020ObsessionsWriter (additional material)Series 2, Episodes 1–42020Nature TableWriterSeries 1, Episodes 1–6; Christmas Special; Series 2, Episodes 1–6; Series 3, Episodes 2, 3, 4, 62022, 2025Kat Sadler's Screen Time KatWriterSeries 1 and 22024ObsessionsGuestSeries 3, Episode

Online +YearTitleChannelRoleOther roleNotesRef.2017Shower BusinessYouTubeBusiness WomanWriterSad FaceKatWriter201810 easy steps to write the perfect tweetKatWriterFrom Russia With Lou & AnnieKatWriterEpisode 16: "Matchday 16"ViraltownEnsemble actorEpisodes 1, 3, 6, 8Rob & BethLaura2019That friend who's stopped drinkingVimeoAlex2021Taking StockYouTubeLorraine (Voice)Episode 9: "Productivity"Michaela (Voice)Episodes 2, 5, 8

Live performance +YearTitleRoleVenueRef.2018Succubus Fringe EditionHost/PresenterEdinburgh Fringe FestivalTracy's Leaving Party: Hot Young ThingsSelfWork in progress show with Christy Coysh

Media appearances Radio:

9 July 2025 – Front Row, BBC Radio 4 – discussing Such Brave Girls.

References

External links