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Known for Acting
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.
Kiloran Bay (2026) — Dougal
Believe Me (2026) — DS Steve Warrilow · 2 episodes
Watch the Skies (2025) — Thor
Harlan Coben's Lazarus (2025) — Seth McGovern · 6 episodes
Near Miss (2024) — Jim
Here (2024) — Leo Beekman
Belgravia: The Next Chapter (2024) — Ross · 8 episodes
Daddy Issues (2024) — Derek · 6 episodes
Trolls Band Together (2023) — Biggie (voice)
National Theatre Live: Much Ado About Nothing (2022) — Dogberry
The Thief, His Wife and the Canoe (2022) — David Leigh · 2 episodes
The Mauritanian (2021) — Kent
The Pembrokeshire Murders (2021) — Jonathan Hill · 3 episodes
Madagascar: A Little Wild (2020) — Sir Braxton (voice) · 1 episode
Trolls: TrollsTopia (2020) — Biggie / Mr. Dinkles (voice) · 11 episodes
Trolls: TrollsTopia (2020) — Biggie (voice) · 14 episodes
Trolls: TrollsTopia (2020) — Biggie / Mecha Dinkles (voice) · 1 episode
Avenue 5 (2020) — TV Judd · 6 episodes
I'd Like to Be Alone Now (2019) — Sam
Married Young (2019) — David
Whiskey Cavalier (2019) — Todd · 2 episodes
Vanity Fair (2018) — Jos Sedley · 7 episodes
Porn Again (2017) — Terry · 4 episodes
Undateable (2014) — Brett · 34 episodes
Big Bad World (2013) — Oakley · 8 episodes
The Job Lot (2013) — Tyler Kerrigan · 1 episode
Deviation (2012) — Justin
Doubt on Loan (2012) — Eddie
The Somnambulists (2012) — Man 2
National Theatre Live: She Stoops to Conquer (2012) — Tony Lumpkin
Black Mirror (2011) — Oliver · 1 episode
Game of Thrones (2011) — Rennick · 1 episode
Leap Year (2010) — Agent
Sherlock (2010) — Howard Shilcott · 1 episode
The Inbetweeners (2008) — Wolfie · 1 episode
Doctor Who (2005) — Marcellus · 1 episode
Peep Show (2003) — Games Shop Assistant · 1 episode
Spooks (2002) — Policeman at Ruth's House · 1 episode