Cast Credits Witless (2016) Guest starring as PC Pickering (2 episodes) Episode 1x03: Episode 3 (May 13, 2016) Episode 1x02: Episode 2 (May 6, 2016) Thirteen (2016) Guest starring as Ryan Clarke Episode 1x05: Episode 5 (Mar 27, 2016) Father Brown (2013) Guest starring as Roy Tomkins Episode 5x04: The Chedworth Cyclone (Jan 4, 2017) Casualty (1986) Guest starring as Ben Caution Episode 21x42: Entropy (Jun 16, 2007)