After decades in the business, Robin Hughes is the kind of actor who has kept working through several turns of the industry. Roughly 39 titles carry his name. The role of Police Sergeant O'Brien in 'Dial M for Murder' is the one that keeps being brought up. 'Auntie Mame' is a second title with real reach. 27 was the age at the first credit. More of the credits fall under drama than under anything else.