Mark Alan Williams-Thomas (born 9 January 1970) is an English investigative journalist, documentary maker, television presenter, podcaster and private investigator. Before becoming an investigative reporter, he worked as a policeman and family liaison officer with Surrey Police.

KNOWN FOR

ITV Exposure
2012
Murder Prevention
2004
The Investigator: A British Crime Story
2016
Madeleine McCann: The Case Against Christian B
2021
Jeremy Bamber: Proof of Innocence
2026
Wrongly Convicted: Innocent of Murder
2024
The Soham Murders
2023
Jimmy Savile : Untouchable
2021
Broadmoor: Serial Killers & High Security
2021
Diana: The Ultimate Truth
2022
The Other side of Jimmy Savile
2012
Accused of Murdering Our Son: The Steven Clark Story
2021

FILMOGRAPHY

All
Movies
TV
Acting
14
Directing
1
Writing
1
Producing
1
2026
Jeremy Bamber: Proof of Innocence
as Self
2024
Wrongly Convicted: Innocent of Murder
as Self
2023
The Soham Murders
as Self
2022
Madeleine McCann: The Case Against Christian B
2022
Diana: The Ultimate Truth
as Self
2021
Broadmoor: Serial Killers & High Security
as Self
2021
Accused of Murdering Our Son: The Steven Clark Story
as Self
2021
Jimmy Savile : Untouchable
as Self
2021
Madeleine McCann: The Case Against Christian B
as self
2016
The Investigator: A British Crime Story
2012
The Other side of Jimmy Savile
as Self
2012
Update: The Jimmy Savile Investigation
as Self
2012
ITV Exposure
2004
Murder Prevention
as Police Advisor