- Received a 1997 supporting actor Gemini Award nomination for Lives of Girls and Women.
- Has a tattoo on his shoulder of wife Tori Spelling's picture, as well as one on his wrist that reads "Truly, Madly, Deeply, Tori."
- Became a U.S. citizen in 2010.
- Finn Davey McDermott — Son
- Jack Montgomery — Son
- Mary Jo Eustace — Ex-wife
- Tori Spelling — Wife
- Stella McDermott — Daughter
- Hattie Margaret McDermott — Daughter
- Liam Aaron McDermott — Son