Belgium-based casting office working across feature films, television drama and international co-productions, with experience in European, UK and US-led productions.
We collaborate with directors and producers to build casts that are creatively precise, strategically considered and internationally viable.
Creative instinct. Thoughtful structure.
Creative instinct. Thoughtful structure.
Approach
Whether we join a project in early development or later in the process, we always look at the cast as a whole. We think about chemistry, balance and the relationships between characters — how people connect, and how a world feels believable on screen.
Our work combines creative instinct with strategic thinking. Alongside the search for the right performer, we consider the wider needs of a project, from international co-production realities and cast attachments to talent discovery and long-term creative partnerships.
Whether working with established actors, emerging talent or first-time performers, our goal is always the same: to find the people who can bring a story to life.
About
Sien Josephine Teijssen is a Belgium-based casting director and founder of Sien Josephine Casting. She works across feature films and series, both national and international, with projects spanning Europe and the UK. Alongside the creative side of casting, her work also involves strategic cast attachments, international outreach and talent discovery, working with both established and emerging actors.
In 2025, her work on Julie Keeps Quiet received an Artios Award nomination for Outstanding Achievement in Casting.
Alongside her casting work, Sien is actively involved in the international casting community. As a board member of CSA’s Global Chapter, she has helped build collaborations with international film festivals, film funds and industry initiatives, while contributing to conversations and programmes around casting, talent discovery and international collaboration.
Contact
General enquiries : casting@sienjosephine.com
Actor enquiries :
actors@sienjosephine.com
Sien Josephine Casting works exclusively on behalf of productions. We do not represent or manage talent.
Actors are encouraged to remain visible on professional casting platforms and to stay responsive to open calls when announced. Keeping profiles up to date — including headshots, showreels, credits and contact details — ensures we see the most accurate representation of your work.
While all actor emails are read and noted, we are not always able to respond individually due to volume.
Thank you for your understanding.