Biography
David Fynn is a British-Irish actor, producer and screenwriter, best known for playing Brett in the NBC TV sitcom Undateable. He began playing Dewey Finn in the West End cast of Andrew Lloyd Webber's musical School of Rock (based on the 2003 film with Jack Black) in October 2016 at the New London Theatre, for which he received an Olivier Award nomination for Best Actor in a Musical in 2017.
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Game of Thrones
Rennick
2011 • 1 episode
Doctor Who
Marcellus
2005 • 1 episode
Black Mirror
Oliver
2011 • 1 episode
Spooks
Policeman at Ruth's House
2002 • 1 episode
Sherlock
Howard Shilcott
2010 • 1 episode
Trolls: TrollsTopia
Biggie / Mr. Dinkles (voice)
2020 • 11 episodes
Peep Show
Games Shop Assistant
2003 • 1 episode
Madagascar: A Little Wild
Sir Braxton (voice)
2020 • 1 episode
Trolls Band Together
Biggie (voice)
2023
Avenue 5
TV Judd
2020 • 6 episodes
The Inbetweeners
Wolfie
2008 • 1 episode
Undateable
Brett
2014 • 34 episodes
Harlan Coben's Lazarus
Seth McGovern
2025 • 6 episodes
The Mauritanian
Kent
2021
Whiskey Cavalier
Todd
2019 • 2 episodes
Leap Year
Agent
2010
Here
Leo Beekman
2024
Vanity Fair
Jos Sedley
2018 • 7 episodes
Believe Me
DS Steve Warrilow
2026 • 2 episodes
Belgravia: The Next Chapter
Ross
2024 • 8 episodes