Joshua Mathias O'Connor (born May 20, 1990) is a British actor. After training at the Bristol Old Vic Theatre School, he had supporting roles in television series such as Doctor Who in 2013 and Peaky Blinders in 2014. He had his breakthrough playing the lead role of a sheep farmer in Francis Lee's romantic drama God's Own Country (2017), for which he won a British Independent Film Award. For portraying a young Charles III in the Netflix drama series The Crown (2019–2020), O'Connor won a Primetime Emmy Award and a Golden Globe Award. He has since starred in the period dramas Emma (2020) and La Chimera (2023) as well as Luca Guadagnino's Challengers (2024) and Rian Johnson's Wake Up Dead Man (2025).

Filmography

• 2026Disclosure Day — Dr. Daniel Kellner
• 2026National Theatre Live: Golden Boy — Joe Bonaparte
• 2026Rosebush Pruning — Thanks
• 2025Rebuilding — Dusty, Executive Producer
• 2025The History of Sound — David White
• 2025The Mastermind — James Blaine Mooney
• 2025Wake Up Dead Man: A Knives Out Mystery — Fr. Jud Duplenticy
• 2024Big Cat — Executive Producer
• 2024Bonus Track — Jonno, Executive Producer, Story
• 2024Challengers — Patrick Zweig
• 2024Jean Cocteau — Narrator (voice)
• 2024Lee — Antony Penrose
• 2023La Chimera — Arthur
• 2022Aisha — Conor Healy
• 2021Mothering Sunday — Paul Sheringham
• 2021National Theatre Live: Romeo and Juliet — Romeo
• 2020Emma. — Mr. Elton
• 2019Hope Gap — Jamie
• 2019Only You — Jake
• 2018Boys on Film 18: Heroes — Peter (segment "The Colour Of His Hair")
• Les Misérables — Marius
• 2017God's Own Country — Johnny Saxby
• 2017The Colour of His Hair — Peter
• 2016Best Man — Donald
• 2016Florence Foster Jenkins — Donaghy
• The Crown — Prince Charles
• The Durrells — Lawrence Durrell
• 2015Bridgend — Jamie
• 2015Cinderella — Ballroom Palace Guard
• 2015Holding on for a Good Time — Charlie
• 2015The Program — Rich
• 2014Hide and Seek — Max
• 2014The Riot Club — Ed Montgomery
• Father Brown — Leo Beresford
• London Irish — James
• Peaky Blinders — James
• 2013The Magnificent Eleven — Andy
• 2013The Wipers Times — Dodd
• Ripper Street — P.C. Bobby Grace
• 2012The Eschatrilogy: Book of the Dead — Zombie
• Law & Order: UK — Rob Fellows
• Lewis — Charlie Stephenson
• Doctor Who — Piotr
• Great Performances — Romeo
• Dark Matter — Jack
• Jack of Spades — Jasper
• Three Incestuous Sisters — Paris

Appearances as themselves (13)

• 2026Encountering the Unknown: Inside DISCLOSURE DAY — Self
• 2026FULL DISCLOSURE: THE REALITY BEHIND SPIELBERG'S DISCLOSURE DAY — Himself
• Shut Up Evan — Self - Guest
• Skip Intro — Self - Guest
• Faut Voir - L'Hebdo cinéma — Self - Guest
• 2020The Netflix Afterparty: The Best Shows of the Worst Year — Self
• The Kelly Clarkson Show — Self
• Late Night with Seth Meyers — Self - Guest
• The Tonight Show Starring Jimmy Fallon — Self - Guest
• Variety Studio: Actors on Actors — Self
• The Graham Norton Show — Self
• Saturday Night Live — Self - Host
• Golden Globe Awards — Self - Nominee