Derek Newark played a vast amount of film and television roles during the 1960s and 1970s, including parts in ‘The Baron’ in 1967, three episodes of the cult series ‘The Avengers’, between 1969 and 1972 six episodes of’ Z-Cars’, and in’ Barlow at Large’ in the returning character of Detective Inspector Tucker between 1974–1975.
He appeared in the first Doctor Who story ‘An Unearthly Child’ in 1963, and later working opposite the third Doctor, Jon Pertwee in the 1970 story ‘Inferno’.
In comedy, Newark played the role of Spooner, the continually bad tempered former Red Devil, turned professional wrestler in the classic Yorkshire TV series Rising Damp, starring Leonard Rossitor.
In the 1970s he moved principally into theatre work ,spending nearly ten years at the Royal National Theatre.
One of his most influential roles was as 'Bottom' in 'A Midsummer Night's Dream' and the world premiere of David Mamet's ‘Glengarry Glen Ross' where he played Shelley Levene and he also played Malcolm in Alan Ayckbourn's 'Bedroom Farce', which showcased in the West End as well as on Broadway.
On film, Newark was particularly compelling as ‘Jessard’, sidekick to Sargent. Johnson, played by Sean Connery, in Sidney Lumet's 1972 influential police drama ‘The Offence’.
He created the role of 'Roote' in the Harold Pinter play 'The Hothouse' which premiered in a production directed by Pinter himself in 1980.
He worked on a variety of TV shows in the 80's.
In 1984 playing
Detective Chief Superintendent Sullivan in TV mini-series ‘Travelling man’ and in 1988 in the mini-series ‘A Taste for Death’ as Gordon Halliwell.
His final TV role was in the Thames police drama serial ‘The Bill’ in 1996.
At the age of 68 Derek Newark died of a heart attack, brought on by liver failure after years of alcoholism, on 11th August 1998 in West London.