
Known For
Acting
David Fynn
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.
Movie Appearances

Deviation
as Justin
2012

Trolls Band Together
as Biggie (voice)
2023

National Theatre Live: Much Ado About Nothing
as Dogberry
2022
Doubt on Loan
as Eddie
2012

The Somnambulists
as Man 2
2012

National Theatre Live: She Stoops to Conquer
as Tony Lumpkin
2012

Leap Year
as Agent
2010

I'd Like to Be Alone Now
as Sam
2019

The Mauritanian
as Kent
2021

Near Miss
as Jim
2024

Here
as Leo Beekman
2024

Married Young
as David
2019

Watch the Skies
as Thor
2025

Kiloran Bay
2026
TV Appearances

Big Bad World
as Oakley
2013

Undateable
as Brett
2014

Doctor Who
as Marcellus
2005

Black Mirror
as Oliver
2011

Sherlock
as Howard Shilcott
2010

Game of Thrones
as Rennick
2011

The Thief, His Wife and the Canoe
as David Leigh
2022

Belgravia: The Next Chapter
as Ross
2024

Vanity Fair
as Jos Sedley
2018

Madagascar: A Little Wild
as Sir Braxton (voice)
2020

Daddy Issues
as Derek
2024

Spooks
as Policeman at Ruth's House
2002