Before graduating by having the degree inside English from either University College, Oxford in 1964, York had toured sustaining a National Youth Theatre, also performing using a Oxford University Dramatic Society and the University College Players. Fallowing a few instance sustaining a Dundee Repertory, York joined the National Theatre where he worked with Franco Zeffirelli during the 1965 staging of Much Hustle All about Nothing.

Zeffirelli cast York in his film debut when Lucentio in The Taming of the Shrew (1967), and when Tybalt in the successful 1968 film Romeo and Juliet with Leonard Whiting and Olivia Hussey; described by Roger Ebert as the sorcerous high point of Zefferelli's career), when Brian Roberts inside Cabaret (1972) and as a fiery John the Baptist in Jesus of Nazareth (1979).

Meanwhile, York got already get on British TV when Jolyon (Jolly) in The Forsyte Saga (1967).

Since his auspicious early act, York has enjoyed the occupy & varied career around film and TV, and on the stage. He has besides manufactured numbers of audio recording as a reader.

York's stepson is Star Wars producer Rick McCallum.

Autobiography

Inadvertently in Purpose (United states), Pocket edition. ISBN 0671795910. Travelling Streaming video player (UK), Newspaper headline. ISBN 0747233063.