In 1943, at age 9, Jason was evacuated from his London home to California as part of the British government's attempts to protect civilians.
When he returned to the United Kingdom, he adopted his stage name of Neville Jason as a tribute to a surname his mother used for her career as a professional singer.
In the latter company, he appeared alongside Vivien Leigh and Sir Laurence Olivier in Peter Brook's influential production of Titus Andronicus.
[2] Alongside his theatre career, Jason had small roles in notable films including From Russia with Love and The Duellists.
[13] Jason met his wife, Gillian Bosworth, in a production of A Midsummer Night's Dream at the Old Vic Theatre in the 1960s.
The couple founded the Gillian Jason Gallery in Camden Town with a focus on contemporary British painters.