Derek Johns is a fictional character portrayed by Brian Bovell in the TV series Silent Witness.
In the first episode they appeared in, titled Running on Empty: Part 1 (season 7), they were 43 years old.
They appear in 2 episodes out of a total of 247 aired so far
Episodes2
Running on Empty: Part 1
episode S7.E5 october 2003A John Doe is found months after his death; an attractive female agent for a championship athlete is believed to have jumped to her death from a rooftop. Forensic pathologists must sort out time and methods of death.Running on Empty: Part 2
episode S7.E6 november 2003Sam Ryan steals a toothbrush to get the DNA of the father of the unborn child of a suspected suicide. Tangled relationships between an athlete and his family are amplified when his body is found hanging in her apartment. Police arrest the athlete's brother-in-law after an anonymous tip. Harry's attempts at determining time of death by the growth of maggots give a wrong answer.
- Running on Empty: Part 1
- Running on Empty: Part 2