Mr Hendricks is played by Jim Howick
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Netflix's Sex Education: Meet the cast

17. Mr Hendricks is played by Jim Howick
Colin Hendricks, Moordale's science teacher, is played by British actor Jim Howick. He appeared in 'Broadchurch' season 3, 'Inside No. 9', 'Peep Show' and has played various parts on 'Horrible Histories'. [Netflix]