Nathan Joseph Fielder (born May 12, 1983) is a Canadian comedian, actor, writer, director, and producer.

[1] Fielder was interested in comedy from a young age, and as a teenager was involved in his school's improv group, which also featured fellow comedian Seth Rogen.

After attending a comedy course at Humber College, Fielder started his career as a correspondent for CBC's This Hour Has 22 Minutes for the segment series Nathan on Your Side from 2008 to 2009.

In 2013, he co-created and directed the Comedy Central parody reality show Nathan for You, in which Fielder stars as a slightly more awkward version of himself, who offers advice to struggling businesses.

[13] After receiving the Tim Sims Encouragement Fund Award in 2006,[14] Fielder worked as a writer on Canadian Idol, where he was noticed by Michael Donovan, an executive producer for the CBC comedy series This Hour Has 22 Minutes.

Donovan hired Fielder as a field correspondent, and developed his popular recurring segment, "Nathan on Your Side".

[15] In 2010, Fielder wrote and directed a number of sketches for Season 2 of Important Things with Demetri Martin on Comedy Central.

[10] The show, which he wrote, directed, and starred in, was based on the "Nathan On Your Side" segments that he did for This Hour Has 22 Minutes.

[10] The show's premise features Fielder, playing a persona loosely based on himself, providing advice for local small businesses.

[25] The identity of the person behind the shop was not released initially, and various artists and comedians such as Banksy[26] and Tim & Eric were theorized to be involved with the prank[27] (the latter’s production company Abso Lutely Productions had applied for a filming permit at the Dumb Starbucks Coffee location).

[33][34] Fielder worked as a consulting producer, writer and co-director for the Sacha Baron Cohen created political mockumentary series Who is America?

[39] In 2021, HBO announced the name of another new comedy series, The Rehearsal, starring Fielder, who also served as writer, executive producer, and director.