Neil Muir, Andrew Lavelle, and Sheridan Booth (UK)Edit
These three British contestants who appeared on the show in January and March of 1999 were stripped of their winnings as they had criminal records. Neil Muir, from Wallasey, Merseyside, won £64,000. Andrew Lavelle, from Wrexham, Wales, won £16,000 and Sheridan Booth, from Hassocks, West Sussex won £500.
Charles Ingram (UK)Edit
Charles Ingram, an Army major from Wiltshire, England, won the £1 million prize on September 10, 2001, but it was later revealed that he had cheated his way to the top prize. He was later stripped of his million pound prize and was kicked out of the Army in the summer of 2003. His wife Diana and Cardiff college lecturer Tecwen Whittock were accused of helping him cheat his way to the million by coughing whenever Charles mentioned the right answers. His episode was not actually broadcast until April 21, 2003 and was also made into a documentary called Millionaire: A Major Fraud.
Lertlak Panchanawaporn (Thailand)Edit
Lertlak Panchanawaporn, a Thai street vendor, won the top prize of 1 million baht in 2002, but had her winnings taken away after it was revealed that a computer error led to the right answers being highlighted on her screen and not the presenter's. She was allowed to play again but only won 25,000 baht. She is the only Thai to answer all 16 questions correctly, no-one on the Thai version actually won the top prize.
Asen Angelov (Bulgaria)Edit
Asen Angelov became Bulgaria's first top prize winner on June 13, 2002. However, he had to return his prize of 100,000 levs as his daughter, Iskra Angelova, worked for Nova TV, which airs the show, a violation of game show rules, which meant that he was not eligible. As he is the only Bulgarian to answer all 15 questions correctly, no-one on the Bulgarian version actually won the top prize.