Leslie began his acting career after spending a decade in prison for murder.
He was given a life sentence in 1967 after killing a taxi driver, Felix Reese, during a botched robbery in West Germany.
During his time in jail, he learned how to act and put on shows for his inmates.
He was released after serving 10 years of his sentence in 1977, and quickly enrolled in drama school, with his first mainstream role following in 1984, when he played one of Davros’ henchmen in a ‘Doctor Who’ serial. Oath.