Nathan Fielder (born May 12, 1983, Vancouver, British Columbia) is a Canadian comedian, writer, director, and producer who performed in the improv comedy group at Point Grey Secondary School alongside Seth Rogen before studying business at the University of Victoria and comedy at Humber College. He created Nathan for You (2013 to 2017) and The Rehearsal (2022 to 2025) for HBO, both of which apply improvisational principles to documentary-style television in ways that interrogate the boundaries between spontaneous and scripted behavior. He was named to the TIME 100 Most Influential People list in 2023.
Fielder was born in Vancouver's Dunbar neighborhood to Eric and Deb Fielder, both social workers in workers' compensation services. At Point Grey Secondary School, he joined the school's improv comedy group, where his teammates included Seth Rogen and Evan Goldberg. Rogen later recalled that Fielder's deadpan approach was evident from their earliest performances together: he would say nothing throughout a sketch, then deliver a single line at the end that earned the biggest laugh by recontextualizing the entire scene. Their team placed third in a national high school improv competition.
Fielder graduated from the University of Victoria in 2005 with a Bachelor of Commerce degree and worked briefly at a brokerage firm before pursuing comedy full-time. He enrolled in Humber College's one-year comedy writing and performance program in Toronto, completing it in 2006. That same year, he received the Tim Sims Encouragement Fund Award, a distinction given annually to an emerging Canadian comedian.
His early television career began as a writer and junior producer for Canadian Idol (2006), where executive producer Michael Donovan noticed his work and hired him as a field correspondent for the CBC series This Hour Has 22 Minutes (2007 to 2009). On that show, Fielder developed the recurring segment Nathan on Your Side, a deadpan consumer advocacy feature that became the conceptual foundation for his later work.
In 2013, Comedy Central premiered Nathan for You, which Fielder co-created, wrote, directed, and starred in across four seasons and 32 episodes through 2017. The show presented Fielder as an inept business consultant offering absurd strategies to real struggling small businesses, with each episode built on improvisational interactions with unsuspecting participants. A February 2014 stunt involving a parody cafe called Dumb Starbucks attracted national media coverage and demonstrated the show's capacity to generate real-world events from comedic premises.
Fielder served as executive producer on How to with John Wilson (HBO, 2020 to 2023), mentoring Wilson's observational documentary approach. His HBO series The Rehearsal premiered in July 2022, with a second season arriving in April 2025. The show orchestrates hyper-realistic rehearsals for participants facing difficult life situations, constructing elaborate physical environments and hiring actors to simulate outcomes before they occur.
He co-created The Curse (Showtime, 2023) with Benny Safdie, a scripted dark comedy starring alongside Emma Stone. His voice acting credits include Rick and Morty, The Simpsons, and Bob's Burgers. Outside entertainment, Fielder founded Summit Ice Apparel, a nonprofit outdoor clothing brand that has generated millions in donations for Holocaust education organizations.
Historical Context
Fielder's path from the Point Grey Secondary School improv group through Humber College to Comedy Central and HBO traces a distinctly Canadian comedy pipeline that connects high school improvisational training to international television success. His teammate Seth Rogen followed a parallel trajectory from Point Grey to Hollywood, and their production company Point Grey Pictures (named for the school) became one of the most prolific comedy producers in North American entertainment.
The improvisational foundations Fielder developed in high school are visible throughout his professional work, though transformed into something that tests the form's own assumptions. Where traditional improv emphasizes spontaneous collaboration and mutual support between performers, Fielder's shows create controlled environments in which real people improvise responses to increasingly elaborate scenarios. Nathan for You and The Rehearsal both function as experiments in what happens when improvisational interaction is subjected to systematic design, meticulous preparation, and the asymmetric knowledge that separates the show's creator from its participants. The success of both shows established Fielder as a central figure in a broader shift in American comedy toward hybrid formats that blur the boundary between performance and documentation, a development traceable in part to the improvisational skills developed during his years in Canadian high school comedy.
Legacy
Fielder's significance to the broader landscape of improvisation lies in his expansion of what improvisational performance can mean when removed from the theater stage and embedded in documentary television. His work demonstrates that the core skills of improv (listening, responsiveness, commitment to the reality of a scene) can operate in contexts far beyond the short-form games and long-form structures where they originated.
His influence on a generation of comedy creators is evident in the proliferation of shows that blur documentary and performance formats. How to with John Wilson, which Fielder produced, carries forward the observational tradition, while The Rehearsal has prompted sustained critical discussion about the ethics and aesthetics of using real people as improvisational participants.
His recognition on the TIME 100 list in 2023 and his multiple Emmy nominations in writing, directing, and hosted nonfiction categories in 2025 confirm his position as one of the most distinctive creative voices to emerge from the Canadian comedy training system.
Recommended Reading
Books are ordered from the strongest direct connection outward to broader relevance.

The Comedy Improv Handbook
A Comprehensive Guide to University Improvisational Comedy
Matt Fotis; Siobhan O'Hara

Improv Comedy (20th Anniversary Edition)
Andy Goldberg

The Upright Citizens Brigade Comedy Improvisation Manual
Matt Besser; Ian Roberts; Matt Walsh

The Art of Chicago Improv
Short Cuts to Long-Form Improvisation
Rob Kozlowski

How to Be the Greatest Improviser on Earth
Will Hines

Funny on Purpose
The Definitive Guide to an Unpredictable Career in Comedy
Joe Randazzo
References
How to Reference This Page
The Improv Archive. (2026). Nathan Fielder. Retrieved September 28, 2026, from https://improvarchive.org/people/nathan-fielder
The Improv Archive. "Nathan Fielder." The Improv Archive, 2026. https://improvarchive.org/people/nathan-fielder.
The Improv Archive. "Nathan Fielder." The Improv Archive, 2026, https://improvarchive.org/people/nathan-fielder. Accessed September 28, 2026.
The Improv Archive is a systemically maintained repository. The archive itself acts as the corporate author.