Mark Lester (born Mark A. Letzer) is an English former child actor, osteopath, and acupuncturist who starred in a number of British and European films in the 1960s and 1970s. In 1968 he played the title role in the film Oliver!, a musical version of the Charles Dickens' novel Oliver Twist. Lester also made several appearances in a number of British television series. In 1977, after appearing in the all-star international action adventure film The Prince and the Pauper, he retired from acting. In the 1980s, he trained as an osteopath specialising in sport injuries.