Born in 1947, Mr. Day embarked on his academic journey at Bristol University, graduating in the late 1960s. He commenced his stage career in regional theatre, eventually becoming a well-known figure in the theatrical community.
Under the direction of Richard Eyre, he joined the National Theatre, participating in the David Hare trilogy. Additionally, he originated the role of Stephen in Patrick Marber's 'Dealer's Choice', as well as spending seven seasons with the Royal Shakespeare Company.
Notable performances with the RSC include his involvement in the World Shakespeare Festival in 2012 and the controversial 2011 revival of Marat/Sade. As a founding member of the Original Shakespeare Company, he experimented with cue scripts and minimal rehearsal.
Furthermore, he led workshops in both Britain and America, and taught drama at Plumstead Manor school in the 1980s. Mr. Day published a book titled 'On Bard Duty', which recounts his experiences with the RSC and provides a background to the company and the theatre.
In 1991, he took on the role of DS Morley, Arthur Daley's would-be nemesis, for the last three series of 'Minder'. Twelve years later, he appeared in the first series of 'New Tricks', playing the boss of the original 'Minder', Dennis Waterman. Over the years, he has built an impressive television CV, featuring appearances in 'Poirot', 'Midsomer Murders', and 'Foyle's War'.