Peter Llewellyn-Jones, the British Sign Language interpreter and academic who became a familiar face to a generation of children as Mr Montgomery Lancelot Grimley in The Riddlers, has died aged 76.For many viewers, Peter will be remembered as the slightly eccentric Mr Grimley, who is the neighbour of central character Marjorie in the long-running children’s show.But acting was only one part of an unusually varied career which was closely tied with British Sign Language and the Deaf community.The British Deaf Association have paid tribute to the author today, as a spokesperson said: ‘We are deeply saddened by the passing of Peter Llewellyn-Jones.’A respected BSL advocate, interpreter, educator and ally, Peter devoted more than 50 years to supporting Deaf people and championing BSL.’His legacy will never be forgotten. Rest in peace.’ It has not been announced what Peter’s cause of death was as yet. Peter Llewellyn-Jones, the British Sign Language interpreter and academic who became a familiar face to a generation of children as Mr Montgomery Lancelot Grimley in The Riddlers, has died aged 76 (pictured on The Riddlers)Peter qualified as an interpreter in 1972, at a time when professional interpreting for Deaf people was still developing as a recognised field.His career subsequently encompassed social work, television, theatre, interpreter training and academic research.One of his earliest television roles was as Supersign in Insight, the Yorkshire Television series made for deaf and hard-of-hearing children.The programme combined education and entertainment, and Peter’s signing made him a distinctive presence on screen.He later became known to a much wider audience through The Riddlers, appearing as Mr Grimley in dozens of episodes between 1989 and 1998.His television work extended beyond children’s programmes. Peter appeared in programmes concerned with sign language and interpreting and was also involved in interpreting for the performing arts, including theatre and opera.Alongside this practical work, he became an important figure in the development of interpreter education in Britain. For many viewers, Peter will be remembered as the slightly eccentric Mr Grimley, who is the neighbour of central character Marjorie in the long-running children’s showHe taught at a number of universities and was instrumental in the development of higher-education courses for BSL-English interpreters.At the University of Leeds, where he was Senior Teaching Fellow and Programme Director of the MA in Interpreting: BSL-English, he helped train a new generation of interpreters. He subsequently became a Visiting Research Fellow.The actor later worked with the University of Central Lancashire.Fans and pupils of Peter took to social media to pay tribute following the announcement of his passing.One wrote: ‘Lovely man and I had be pleasure of being taught by him. I always left his class feeling good about yourself.’Nice memories and he defiantly left his stamp on the world.’Another added: ‘The most enthralling teacher I have had, funny and insightful! Sad news and he will be missed in all circles.’I feel so privileged to have known PLJ. Such a wonderful man! Rip in peace.’Others remember his role on 90s show: ‘He was brilliant. I loved The Riddlers.’A second commented: ‘Sad to hear that Peter Llewellyn Jones has passed away, I love The Riddlers and I remember buying it on video, when i was a kid.’