Christien has just produced the final 3 episodes of The Assassin S2 (6x60) for Amazon/Two Brothers, starring Keeley Hawes and Freddie Highmore.

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Previously, he was producing on Sky Studios' Amadeus (5x60), written by Joe Barton and starring Paul Bettany and Will Sharpe. He was Producer on Episode 4 and Associate Producer across the rest of the series.

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Coming from a script development background, Christien also continues to work with writers and develop scripted television ideas.