Netflix
About
The short version
William Jannert, born 2004, is a young Swedish actor working in film and television. He plays Jon, a leading role in the Netflix limited series Land of Sin (original title SYNDEN), produced by Ninjahuset. Earlier credits include young Mattias in the ViaPlay series End of Summer, Elias in the Nordic noir feature film Scapegoat, and Max in Festen 3 on SVT.
He grew up bilingual and performs at native level in both Swedish and German, with fluent English on top. Few young male actors in Scandinavia can carry roles in all three languages, which keeps him in the room for Swedish, German and international casting alike. He is based in Skåne in southern Sweden, under an hour from Copenhagen airport, and available for productions across Europe.
He is represented by Hammarström Agency in Stockholm.
Selected Work
The roles
Netflix
ViaPlay
Young Mattias
End of Summer
Slutet på sommaren
Playing the younger incarnation of the lead in the ViaPlay series.
Feature Film
Elias
Scapegoat
Elias in the Nordic noir feature film, released in Swedish cinemas in 2024 and then streaming on Prime Video in Scandinavia.
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Jon
Land of Sin · SYNDEN
Netflix / Ninjahuset
2026
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Young Mattias
End of Summer · Slutet på sommaren
ViaPlay / Harmonica Films
2023
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Elias
Scapegoat
Phelecan Films
2024
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Max
Festen 3
SVT
2021
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Orlando
Som ni behagar · As You Like It
Emiliaskolan
2019
Portraits
The range
Showreel
In motion
FAQ
Common questions
Who is William Jannert?
William Jannert is a young Swedish actor, born in 2004, known for playing Jon in the Netflix limited series Land of Sin (original title SYNDEN). He is represented by Hammarström Agency in Stockholm.
What has William Jannert appeared in?
Land of Sin (Netflix, 2026), End of Summer (Slutet på sommaren, ViaPlay, 2023), the feature film Scapegoat (2024) and Festen 3 (SVT, 2021).
What languages does William Jannert speak?
He grew up bilingual: Swedish and German at native level, plus fluent English. That makes him one of few young male actors in Scandinavia who can carry roles in all three languages.
How do I cast or book William Jannert?
All casting enquiries and bookings go through Hammarström Agency in Stockholm. You can also reach William directly at [email protected].
Contact
For casting &
bookings
Represented by
Hammarström Agency
For all casting enquiries and bookings, please contact my agency.
Languages
- Swedish Native
- German Native
- English Advanced