The ex-Army Major swindled the show with the help of wife Diana and a coughing accomplice. Here is the lowdown.
Born in Shardlow, Derbyshire, in 1963, Ingram obtained a degree in civil engineering and a masters in corporate management before joining the Army in 1986.
He became an officer with the Royal Engineers and was rose to the rank of major in 1995.
Ingram served in Bosnia for six months on Nato peacekeeping duties.
He was forced to resign from the Army in August 2003 following his court case.
In 2001, Major Charles Ingram answered 15 questions correctly to sensationally scoop the jackpot on Who Wants To Be A Millionaire?
But the cheque was taken from him as he left the studio as suspicions began to surface.
A court ruled he had answered the questions through help from fellow contestant Tecwen Whittock, who coughed to alert him to the right answers.
Ingram's wife was also said to be involved.
Whittock, a college lecturer from Cardiff, was waiting in the "fastest finger first" group when the controversy erupted.
A few days after the show Ingram received a message to call Paul Smith, the boss of the company which made the show.
Mr Smith said they were "irregularities" during the taping of the show and it would not be aired.
Police had also been contacted.
It was suggested Whittock had been coughing loudly to indicate the right answer, and blew his nose loudly when the major was about to give a wrong answer.
Pagers and mobile phones had been used to help, it was claimed.
After the court case, both Diana and Charles were given an 18-month prison sentence suspended for two years, while Whittock received a 12-month sentence suspended for two years.
After he was sentenced, the Army Board forced Ingram to resign as major after 17 years of service.
It emerged in 2016 that Ingram paid only £1,240 of the £25,000 fine he was given in 2003 — despite his court case costing the taxpayer more than £8million.
Magistrates later cut his fine to £5,000. Diana had her fine quashed on appeal.
He retreated to his home in Westbury, Wilts, selling jewelry made by Diana on a market stall.
He is selling his £450,000 country home after the scandal turned him into a recluse.
Source video: genk
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