Jack Nielen

JackNielen

Actor — London

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Work

Film
Spencer — Jack Nielen as Prince William with Kristen Stewart as Princess Diana

Spencer

Prince William

Directed by Pablo Larraín. Opposite Kristen Stewart. Premiered at the Venice Film Festival 2021.

View on IMDb →
Stage
Blue Stockings — Jack Nielen as Ralph Mayhew at Deerfield Academy

Blue Stockings

Ralph Mayhew

Directed by Catriona Hynds. Stage production. Deerfield Academy, 2025.

About

Jack Nielen is a British actor working across screen and stage. He made his feature film debut as Prince William in Spencer, directed by Pablo Larraín and starring Kristen Stewart, and most recently appeared as Ralph Mayhew in Blue Stockings, directed by Catriona Hynds at Deerfield Academy.

Trained in both the US and the UK, Jack is drawn to intelligent, emotionally layered roles and directors who push boundaries.

6'0"Height
16Age
LondonBased