Phillips read Italian and linguistics at New College, Oxford, where she joined the Oxford Revue, playing mostly male parts, alongside contemporaries including Stewart Lee and Richard Herring (who went on to have their own television show, Fist of Fun, in which Phillips appeared as "the girl who smells of Spam"). She then co-wrote and performed the one-woman show Benadetta, the Life of a Lesbian Nun in Renaissance Italy, based on a true story. She appeared in the 1990 Oxford Revue THRASH, which also starred Ed Smith.[4]
Phillips performed at nine consecutive Edinburgh Fringe Festivals, appearing in shows including Ra-Ra-Rasputin, Arthur Smith's version of Hamlet (as Ophelia) and Cluub Zarathustra with Simon Munnery, Stewart Lee, Richard Thomas, Julian Barratt and Lori Lixenburg. Her first television role was in Lee and Herring's Fist of Fun in 1994, followed shortly after by a cameo in Alas Smith and Jones with Mel Smith. In 1995, Phillips played the role of a reporter in the unbroadcast pilot of Chris Morris's spoof series Brass Eye. In Six Pairs Of Pants, six actors produced a number of regular sketches, which developed as the series progressed.[5] As well as Phillips, the show featured Jessica Hynes, Simon Pegg, Neil Mullarkey, Katy Carmichael and Simon Schatzberger, and was written in part by Phillips. Regular sketches included two New Zealand characters who had moved to the UK and worked behind various bars, the whole group as "Flatmates" and various spoof horror trailers. Phillips had a role as a "Travel Tavern" receptionist in I'm Alan Partridge (1997), and as Laura in Holding the Baby. She played radio DJ Gemma White in the TV series In the Red.
In 1997, Phillips featured in Eddie Izzard's sitcom Cows. She had a starring role in the short-lived 1999 British comedy series Hippies with Simon Pegg and Julian Rhind-Tutt. Phillips garnered a nomination for best female newcomer at the 1999 British Comedy Awards as she along with Fiona Allen and Doon Mackichan co-created, wrote, and performed in Smack the Pony.
In 2003, she was listed in The Observer as one of the 50 funniest acts in British comedy. She appeared in Bridget Jones's Diary as Shazza, having previously auditioned for Bridget; the character was based upon the film's director, Sharon Maguire.
In 2004, she took the title role in the BBC radio sitcom Clare in the Community which ended after 74 episodes in 2019. In August 2005, she returned to the stage after a long absence, in Oscar Wilde's The Importance of Being Earnest at the Oxford Playhouse.[6] In 2006, she appeared in the Australian comedy feature BoyTown; on television, she appeared as Clare Winchester in the BBC2 science fiction comedy Hyperdrive.
In the second series of Green Wing, Phillips played the character of Holly, whose appearance threatens the blossoming relationship between Mac (Julian Rhind-Tutt) and Caroline (Tamsin Greig). Between 2006 and 2009, she had a recurring role in the BBC's comedy Jam & Jerusalem as Natasha "Tash" Vine, a scatterbrained New Ager.
In 2009, Phillips took the role of Tilly in Miranda as Miranda Hart's character's irritating upper-class friend. The series found critical success and Phillips remained a part of the show throughout its duration, from 2009 to 2015.
She also had a guest-star part in E4's Skins, series 3 playing Pandora's mother.
Her first feature film script, The Decoy Bride, started production in spring 2010. Phillips appeared in a supporting role in the film, playing Emma, a Hollywood assistant. The film was released in February 2012, premièring first on cable television and as a digital download, and then had a limited theatrical release.
In 2012, she played the lead role in the Sky 1 comedy Parents and also appeared in the CBeebies television series Justin's House. The same year she also appeared with Justin Fletcher in the role of Mr Tumble in Something Special.[7]
She made two episodes of series 3 of the Dave maths and comedy series Dara Ó Briain: School of Hard Sums in 2014, in which she was set various maths-based physical challenges. In America, Phillips has made five appearances in the HBO comedy series Veep as Minna Häkkinen, a fictional Finnish prime minister.
During 2015, Phillips appeared in several TV shows, notably House of Fools and Death in Paradise. She has also appeared in the comedy Burn Burn Burn as Ingrid, a main character, and also the TV film Distinguished Ladies in which she plays the lead role of Bianca.
In 2016, she presented the one-off BBC documentary A World Without Down's Syndrome?, which examined the potential impact of non-invasive prenatal testing (NIPT).
In 2022, she starred as business owner Gina in Australian comedy film How to Please a Woman.
In 2023, she played Tessa in the Netflix romantic comedy Love at First Sight.
In January 2024, she was a guest co-host on the BBC One quiz show Pointless.[8] She starred as Ingrid in the Australian-British comedy series Austin which premiered in June 2024.
Personal life
In 2002, Phillips was hospitalised with salmonellosis during a charity trip to Mexico. She said the illness led to a brain infection that made her body become a "micro-brewery", causing neurological symptoms. Her recovery took months.[9][10][11]
Phillips is a Christian.[12][13] She was married to Andrew Bermejo for 14 years and has three sons from their marriage, one with Down's syndrome.[2][14] In 2017, the couple divorced.[15]
Phillips is a patron of Blue Apple Theatre (Hampshire, UK) which specialises in creating performance work with adults with a learning disability.[16]