ट्रिविया

William directed MisFits at 23, Poldark at 25, The Missing at 28, His Dark Materials at 31 and Lockwood & Co at 33. He is the youngest director to work on each of the TV series.

Screen International Star of Tomorrow 2012.

The Cambridge University Film Festival was renamed The Water Sprite Film Festival in honour of William's student film Who's Afraid of the Water Sprite?.

William was a budding athlete, scouted to the Leicester Tigers and England Elite Rugby Player program, competed in the 200m and 400m distances in the Youth Premier League and placed top ten nationally in junior Pentathlon. According to an interview with Authority magazine.