Christopher Colquhoun is an English actor who trained at RADA. He is known for appearing as Simon Kaminski in the BBC drama series Casualty, from 2002 to 2004; he also appeared in Holby City in this role. Colquhoun also played Jake Quinn in The Bill for two episodes – "An Honour to Serve", parts 1 and 2 – and appeared as pathologist Dr Tony Carmichael in the seventh season of Vera, screened during 2017.