Stephen James Merchant is an English comedian, actor, director, and writer. He was the co-writer and co-director of the British TV comedy series The Office (2001–2003), and co-writer, co-director, and co-star of both Extras (2005–2007) and Life's Too Short (2011–2013) alongside Ricky Gervais. With Gervais and Karl Pilkington, he hosted The Ricky Gervais Show in its radio, podcast, audiobook, and television formats; the radio version won a bronze Sony Award. He also provided the voice of the robotic "Intelligence Dampening Sphere" Wheatley in the 2011 video game Portal 2. Merchant co-developed the Sky One travel documentary series An Idiot Abroad (2010–2012) and co-created Lip Sync Battle (2015–present).

Extras is a British sitcom about extras working in television, film, and theatre. The series was co-produced by the BBC and HBO, and written and directed by Ricky Gervais and Stephen Merchant, both of whom starred in it. It follows the lives of Andy Millman (Gervais), his friend Maggie Jacobs and Andy's substandard agent and part-time retail employee Darren Lamb (Merchant) as Millman muddles through life as an anonymous "background performer" who eventually finds success as a B-list sitcom star.