Born in Bombay, India. Raised and educated in India, East Africa and London. Mentored by Sir Laurence Olivier with The National Theatre at the Old Vic. Worked in film, television, theatre and radio with Olivier, Anthony Hopkins, John Mills, Robert De Niro, Judi Dench, Kenneth Branagh and The Beatles in the UK. Father of Gemma Gregory, actress known for "Young Estella" in BBC-TV's Great Expectations (1999). Father of Tess Gregory, fine artist, and son Anton Gregory, who appeared as Gemma's brother in BBC-TV's Casualty (1986) series.

• Whoopee! (1930)

  
• I Remember You (2015)

  
• Sit Tight (1931)

  
• Stalking the President: A History of American Assassins (1992)