Les studied Fine Art at Cardiff Art College, Goldsmiths College University of London and at Rutgers University in the USA, where he completed a Master’s Degree in fine art and history. His teaching experience is extensive, initially teaching Art and Design but gradually becoming more interested in documentary filmmaking and animation which resulted in him teaching basic animation at Middlesex University, Independent Film Production at Cardiff University and he was the Co-ordinator of Chapter Independent Film Workshop in Cardiff. His teaching experience culminated in him becoming Course Director of the Film School at the University of Wales, Newport. His first creative collaboration with Joanna Quinn was on her Graduation film Girls Night Out at Middlesex and since then the two have worked very closely together forming their company Beryl Productions International in 1988. He wrote and produced the next Beryl film Body Beautiful and produced Wife of Bath one of the Canterbury Tales series, which won a BAFTA, 3 Emmys and received an Oscar nomination. He went on to write and produce 2 more Beryl films Dreams and Desires – Family Ties and Affairs of the Art which have won 80 international awards between them including 2 BAFTA nominations and an Oscar nomination. Les won the Writers Award at the 2022 British Animation Awards.