returned to Dixon of Dock Green once more in 1959, though playing an entirely different character, Chapman, in "Over and Out". He also took the role of Mr Lirriper in "The Runaways", part of the Tales from Dickens presentations by Fredric March. His work in the early 1960s included regular appearances in some well-known productions for television, such as Maigret (1960), Danger Man (1961 and 1966) and the 1962 mini-series of Oliver Twist (featuring a very young Melvyn Hayes as the Artful Dodger) when Stephens played Mr Limbkins. He also played a councillor in Sir Francis Drake in 1962, after which he took time out to appear on the stage. On 6 August 1964, Stephens opened at the New Arts Theatre in the London premiere of Alan Ayckbourn's play Mr Whatnot, portraying Herbert the Butler, amongst a cast which included Ronnie Barker, Ronnie Stevens and Judy Cornwell. He did find time to play two characters on television that year, Mr Dawson in "My Late Dear Husband", an episode in the popular Scottish series Dr Finlay's Casebook, and Mr Jinkins in the BBC's 13 part serial Martin Chuzzlewit, adapted from Charles Dickens' novel. 1965 saw a brief return to the cinema for him, portraying Sir Giles Redman in the 30-minute "Scales of Justice" featurette The Hidden Face. In television that year, he made appearances in single episodes of more anthology-style series, namely The Man in Room 17, Out of the Unknown, An Enemy of the State, and Sir Arthur Conan Doyle. Doctor Who and "Cyril" Perhaps Stephens' best-remembered performances were in three episodes of season 3 of Doctor Who, the long-running British sci-fi series featuring a time-travelling Time Lord played in this series by William Hartnell. In the storyline popularly known as The Celestial Toymaker, he played both Cyril the kitchen boy and the animated playing card the Knave of Hearts. The producers subsequently received complaints from lawyers acting on behalf of the deceased author Charles Hamilton's estate. The character Cyril was said to bear a remarkable resemblance to William George Bunter, whom Hamilton wrote many books about under the pen name Frank Richards. The BBC finally issued a disclaimer, saying that Cyril was merely "Bunter-like".<ref>Cyril or Billy? The resemblance causes allegations of plagiarism against Doctor Who'''s producers, the BBC: IMDB.com website. Retrieved on 25 February 2008.</ref> Stephens would portray a completely different character, Lolem, during episodes one and three of