, Sallis married actress Elaine Usher at St. John's Wood Church in London on 9 February 1957.
 He appeared in many British films of the 1960s and 1970s including Saturday Night and Sunday Morning (1960), Doctor in Love (1960), The Curse of the Werewolf (1961), The V.I.P.s (1963), Charlie Bubbles (1967), Scream and Scream Again (1969), Taste the Blood of Dracula, Wuthering Heights (1970), The Incredible Sarah (1976) and Who Is Killing the Great Chefs of Europe?
, Sallis began his career as an amateur actor during his four years with the RAF when one of his students offered him the lead in an amateur production of Nol Coward's Hay Fever. , Sallis died at Denville Hall, a professional actors' retirement home, in Northwood, London, on 2 June 2017. , In 2006, Sallis published an autobiography entitled Fading into the Limelight. While you consent to receive messages sent using an autodialer, the foregoing shall not be interpreted to suggest or imply that any or all of Our mobile messages are sent using an automatic telephone dialing system (ATDS or autodialer). Sallis wrote that "the episode was Kafka-esque, to coin a phrase". , Sallis was awarded an Order of the British Empire in the 2007 Birthday Honours for services to Drama.
Sallis remained close to Usher until her death in 2014.  Sallis appeared in the last episode of Rumpole of the Bailey (1992) and he later starred alongside Brenda Blethyn, Kevin Whately and Anna Massey in the one-off ITV1 drama Belonging (2004).. By opting in to or participating in any of our Programs, you accept and agree to these terms and conditions, including, without limitation, your agreement to resolve any disputes with us through binding, individual-only arbitration, as detailed in the Dispute Resolution section below.  On 17 May 2009, he appeared on the BBC Radio 4 programme Desert Island Discs, selecting Sibelius' Symphony No. The show was a minor success and ran for six months in New York, opening at the Belasco Theater before transferring to the Shubert Theater. Among his television credits, Sallis appeared in Danger Man, The Avengers, Doctor Who ("The Ice Warriors"), The Persuaders! Choose an above category and use our custom filters to find exactly what you are looking for.  His last role as Wallace was in 2010's Wallace and Gromit's World of Invention. Sallis was asked by Prince to take the role of Dr. Watson to Fritz Weaver's Sherlock Holmes.  In the same period, he starred alongside Northern comic actor David Roper in the ITV sitcom Leave it to Charlie as Charlie's pessimistic boss. You may receive an additional mobile message confirming your decision to opt out.  He was 96 years old. , Sallis appeared in the Hal Prince-produced musical She Loves Me in 1963. The series was animated in stop motion, prefiguring his work with Aardman Animations.