The list is sorted by the name of the MP, and MPs who did not serve throughout the Parliament are italicised. New MPs elected since the general election are noted at the bottom of the page.
^Allen quit the Conservatives in February 2019 to join The Independent Group (later Change UK), before quitting to become an independent MP in June 2019. The following month, she founded The Independents with four other MPs[1] and then defected to the Liberal Democrats in October 2019.
^ abcdefghijklmnopqrst21 Conservative MPs were suspended by their party on 3 September 2019 after voting against the government in the emergency European Union (Withdrawal) debate. They sat as independents.[2]
^Hopkins was suspended from Labour in November 2017 after being accused of sexual misconduct.[3]
^Shuker quit Labour in February 2019 to join The Independent Group (later Change UK), before quitting to become an independent MP in June 2019. The following month, he founded The Independents with four other MPs.[1]
^In April 2019, Boles quit the Conservatives to sit as an independent MP. He described himself as an "Independent Progressive Conservative".[4]
^Leslie quit Labour in February 2019 to join The Independent Group[5] (later Change UK).[6]
^Soubry quit the Conservatives in February 2019 to join The Independent Group[5] (later Change UK).[6]
^Williamson was suspended from Labour in February 2019, pending investigation into alleged antisemitism.[7] He was readmitted on 26 June 2019,[8] but had the whip removed again two days later.[9]
^Williamson was defeated in the 2015 election and re-entered the House in the 2017 election.[10]
^Cable was defeated in the 2015 election and re-entered the House in the 2017 election.[11]
^Davey was defeated in the 2015 election and re-entered the House in the 2017 election.[12]
^Gapes quit Labour in February 2019 to join The Independent Group[5] (later Change UK).[6]
^Goldsmith resigned in 2016 due to the Government's October 2016 decision to approve a third runway at Heathrow Airport, ran in the subsequent by-election as an independent and was defeated. He re-entered the House as a Conservative in the 2017 election.
^Ryan quit Labour in February 2019 to join The Independent Group[5] (later Change UK).[6]
^Umunna quit Labour in February 2019 to join The Independent Group[5] (later Change UK),[6] before quitting in June 2019 and then joining the Liberal Democrats that same month.[13]
^Berger quit Labour in February 2019 to join The Independent Group[5] (later Change UK),[6] before quitting to become an independent MP in June 2019. The following month, she founded The Independents with four other MPs,[1] before joining the Liberal Democrats in September.[14]
^Coffey quit Labour in February 2019 to join The Independent Group[5] (later Change UK).[6]
^Ellman quit Labour in October 2019 and sat as an independent MP.[15]
^Lloyd previously served in the House as the Member for Stretford from 1983–1997 and the Member for Manchester Central from 1997–2012.[18]
^McVey previously served in the House as the Member for Wirral West from 2010–2015.[19]
^Woodcock was suspended from Labour in April 2018 after being accused of sexual misconduct. In July 2018, he quit the party to sit as an independent MP. In June 2019, he founded The Independents with four other MPs.[1]
^Elphicke was suspended from the Conservatives in November 2017 after being accused of sexual assault,[20] before being reinstated in December 2018.[21] In July 2019, he again had the whip removed after legal charges were brought against him by the Crown Prosecution Service.[22]
^In September 2019, Lee resigned the Conservative whip and defected to the Liberal Democrats.
^Lloyd was defeated in the 2015 election and re-entered the House in the 2017 election.
^Rudd resigned the Conservative whip on 7 September 2019 and sat as an independent MP.[23]
^Wollaston quit the Conservatives in February 2019 to join The Independent Group[5] (later Change UK),[6] before quitting in June 2019 and then joining the Liberal Democrats two months later.[24]
^Austin resigned from Labour in February 2019 to sit as an independent MP.[25]
^O'Mara was suspended from Labour in October 2017 after offensive online comments he made over a decade earlier were revealed.[26] Despite reports that he had been re-admitted, O'Mara remained as an independent until announcing his resignation as an MP.[27]
^Smith quit the Conservatives in February 2019 to join The Independent Group (later Change UK), before quitting to become an independent MP in June 2019. The following month, she founded The Independents with four other MPs,[1] then joined the Liberal Democrats in September.