Justin Kwok

Justin Kwok is a London-based music editor and audio engineer. With experience in broadcast, live sound, and studio recording, as well as degrees in music and sound recording (Tonmeister) and media studies (UC Berkeley), Justin has a versatile toolkit for syncing music to picture.

Justin began music editing in collaboration with Emmy-nominated composer Rael Jones. With Rael, Justin edited the music for several music documentaries (The 60th Anniversary Bond music documentary Sound of 007, George Ezra's End to End, and Mad About the Boy: The Noel Coward Story) as well as BBC drama Sixth Commandment and the British adaptation of Call My Agent (Ten Percent).

Justin has worked with Academy Award-winning composer Christopher Benstead on multiple releases from Guy Ritchie, including Netflix series The Gentlemen and features such as The Ministry of Ungentlemanly Warfare and Fountain of Youth as score mixer and composer's assistant. As music editor, he also worked on Role Play (produced by and starring Kaley Cuoco, Nicola Coughlin, and Nick Frost), and the TV series Signora Volpe (starring Emilia Fox).

Since 2024, Justin has music edited Hera Pictures’ BAFTA-nominated BBC series What It Feels Like For A Girl, Firebird Pictures' 6-part series Wild Cherry for BBC One, Pulse Films' The Many Deaths of Nora Dalmasso for Netflix, 42 Productions' Picture This for Amazon Prime Video, Amazon's My Fault: London and the sequel Your Fault, STARZ's 8-part series Fightland executive produced by 50 Cent, and the A24 series Major Players.

FILM

Your Fault: London (2026)
Studios: 42 / Amazon
Producers: Ben Pugh, Erica Steinberg
Directors: Charlotte Fassler, Dani Girdwood

My Fault: London (2025)
Studios: 42 / Amazon
Producers: Ben Pugh, Erica Steinberg
Directors: Charlotte Fassler, Dani Girdwood

Picture This (2025)
Studios: 42 / Amazon
Producers: Ben Pugh, Erica Steinberg
Director: Prarthana Mohan

The Ministry of Ungentlemanly Warfare (2024): Composer’s Assistant
Studio: Black Bear
Producers: Ivan Atkinson, Jerry Bruckheimer, John Friedberg, Chad Oman
Director: Guy Ritchie

Seize Them! (2024)
Studios: Pindrop / Entertainment Film Distributors
Producers: Damian Jones, Matthew James Wilkinson
Director: Curtis Vowell

Role Play (2024)
Studios: StudioCanal / Amazon Prime Video
Producers: Kaley Cuoco, Alex Heineman, Andrew Rona
Director: Thomas Vincent

Pandamonium (TBC)
Studio: Cartography
Producers: Addison O’Dea, Chris Rose
Director: Addison O’Dea

The Sound of 007 (2022)
Studios: AEON Productions / Amazon Prime
Producer: John Battsek
Director: Mat Whitecross

End to End (2022)
Studio: Hurley and the Directors Paint Studios
Producers: Catherine Miller, Fiona Neilson, Richard Yee
Directors: Adam Scarborough, Christy Tattershall

TV

Fightland (2026-)
Studio: Starz / Lionsgate
Director: Tessa Hoffe, Sebastian Thiel, Otto Bathurst
Showrunners: Raphael Hackson Jr, Damione Macedon

Wild Cherry (2025)
Studio: Firebird Pictures / BBC Studios
Director: Toby Macdonald
Showrunner: Nicole Lecky

What It Feels Like For A Girl (2025)
Studio: Hera Pictures / BBC
Creator: Paris Lees
Directors: Marie Kristiansen, Ng Choon Ping, Brian Welsh

The Many Deaths of Nora Dalmasso (2025)
Studio: Pulse Films / Netflix
Director: Jamie Crawford

The Gentlemen (2024) Score Mixer
Studios: Netflix / Miramax
Creator: Guy Ritchie

Signora Volpe (2024)
Studio: Route 24
Creators: Rachel Cuperman, Sally Griffiths

The Sixth Commandment (2023)
Studio: Wild Mercury Productions
Creator: Saul Dibb

Ten Percent (2022)
Studio: Amazon Prime Video
Producer: Sarah Curtis