Silent Witness Characters Overview

| Character_ | Actor | Series | Notes_ |
|---|---|---|---|
| Dr. Harry Cunningham | Tom Ward | Series 6-15 | Harry started out life as a junior doctor, who worked as an apprentice alongside Sam and Leo. However, he soon qualified as a pathologist, and has worked on equal footing with the team for a number of years. Harry was single, and lived alone, but has had several romantic relationships, including an on-off relationship with his colleague Nikki. Harry left the team to accept a professorship in New York in the episode And Then I Fell in Love at the end of series 15. |
| Professor Leo Dalton | William Gaminara | Series 6-16 | Leo first appeared in the episode The Fall Out, where he was nothing more than a simple doctor. However, he was promoted to professor after former professor Sam Ryan left. In the episode Ghosts, both his wife, Theresa, and his daughter, Cassie, are killed in a car accident. He began a relationship with fellow professor Janet Mander in Safe, but ended their relationship in the episode Domestic. Leo often took a strong opinion on cases and often became emotionally involved. He died in the series 16 finale `Greater Love`, when he sacrificed himself to save many others from a terrorist bomb explosion. |