Stewart began writing and performing as a stand-up on the London comedy club circuit at the age of 20 and in 1990, won the Hackney Empire New Act of The Year award.
Stewart's stand-up tours include Stand-Up Comedian, 90’s Comedian and 41st Best Stand-Up Ever and following their popularity, the BBC2 commissioned his 2009 series, Stewart Lee's Comedy Vehicle. This was followed by the stand-up tours, If You Prefer A Milder Comedian Please Ask For One, Carpet Remnant World, and four more series of Comedy Vehicle (the second series of which won a BAFTA and two British Comedy Awards). He has also contributed to various BBC Radio comedy shows, including Fist of Fun and On the Hour and co-created two programmes for BBC 2 with Richard Herring.
Stewart is also the author of stand-up studies including How I Escaped My Certain Fate, If You Prefer A Milder Comedian Please Ask For One and Content Provider and the theatre pieces Pea Green Boat, What Would Judas Do?, Johnson and Boswell, Late But Live and Interiors.
Stewart has also directed Arctic Boosh (the Mighty Boosh's breakthrough Edinburgh show - Simon Munnery's Golden Rose Of Montreux nominated), Attention Scum and a revival of Eric Bogosian's Talk Radio. He co-wrote the libretto of and directed Jerry Springer The Opera at Battersea Arts Centre (four times Olivier award-winning).
Stewart is touring the country with his brand-new show Content Provider until 2018.