- Raised in England but moved to Australia for a short time, where he worked as a white-water rafting guide.
- Acted in stage productions at the National Theatre in London and the Royal Shakespeare Company.
- Began appearing on British television in the mid-1990s.
- Narrated an audiobook titled Stranger House by Reginald Hill.
- Stephen and Frank Dillane, his brother and nephew, are also famous actors.
- Frank Dillane — Nephew
- Jayne McKenna — Wife
- Murray Dillane — Son
- Austin Dillane — Son
- Stephen Dillane — Brother
- University of Manchester, Manchester, England (BA in Philosophy)