1. Katherine Parkinson appeared in the Channel 4 comedy series The IT Crowd as Jen Barber, for which she received a British Comedy Best TV Actress Award in 2009 and 2014, and was nominated twice for the BAFTA Television Award for Best Female Comedy Performance, winning in 2014.
Katherine Parkinson was a main cast member of the series Doc Martin for three series.
Katherine Parkinson has appeared in the films The Boat That Rocked and The Guernsey Literary and Potato Peel Pie Society.
Katherine Parkinson grew up in Tolworth and Surbiton, and studied at Tiffin Girls' School before reading classics at St Hilda's College, Oxford.
Katherine Parkinson then studied at the London Academy of Music and Dramatic Art, although she left before graduating in order to star in the play The Age of Consent, which premiered at the Edinburgh Festival Fringe in 2001.
From 2005 until 2009, Katherine Parkinson played Pauline Lamb, a doctor's receptionist and later phlebotomist, in series two to four of the long-running ITV comedy-drama series Doc Martin.
Katherine Parkinson went on to win the award in 2014.
Katherine Parkinson contributed sketch characters to Katy Brand's ITV2 show Katy Brand's Big Ass Show, having been friends with Brand since their time at university.
Katherine Parkinson has performed several times on BBC Radio 4, including on Laura Solon: Talking and Not Talking; Mouth Trap, which she co-wrote with Brand; and The Odd Half Hour.
Katherine Parkinson featured in television advertisements for Maltesers alongside fellow actress and comedian Amanda Abbington.
Katherine Parkinson played Sophie, one of the lead roles along with Mark Heap in BBC Four's three-part comedy series The Great Outdoors.
In 2014, Katherine Parkinson appeared in "Sardines", the first episode of the anthology series Inside No 9, alongside Ben Willbond, as well as the miniseries The Honourable Woman, which aired in the UK on BBC Two and in the USA on SundanceTV.
Katherine Parkinson played one of the lead roles in all three series of the British-American science fiction series Humans, which aired on Channel 4 and AMC between 2015 and 2018.
In 2016, Katherine Parkinson performed in the stage play Dead Funny at the Vaudeville Theatre.
Katherine Parkinson played Emma Jeanne Desfosses in Marjane Satrapi's film adaptation of Lauren Redniss's Radioactive in 2019, detailing the life of Marie Curie.
Katherine Parkinson won the second episode but was behind in total points for the majority of the series, and ended up in last place.
In 2022, Katherine Parkinson played Nell Taylor in the film The Nan Movie and in 2024 she portrayed Lizzie Vereker in the Disney Plus adaptation of Jilly Cooper's Rivals novel.
Katherine Parkinson is married to actor Harry Peacock, and is the daughter-in-law of the late Trevor Peacock.