This is a list of the panellists that have appeared on the BBC television programme QI . The show premiered in September 2003, with Stephen Fry as its host. Fry continued hosting until March 2016, when "Series M" concluded and Sandi Toksvig took over. With very few exceptions, each episode features three guest panellists who alongside permanent panellist Alan Davies answer extremely obscure questions.
As of 25 February 2025, 322 episodes of QI have aired.
The table below lists all guest appearances up to 25 February 2025. It does not include appearances in the unbroadcast pilot, three special episodes, 32 compilation episodes, and one episode containing outtakes from Series E.
"QI - Episode guide". BBC. Retrieved 26 August 2019.