He built up the ranks and served as a major until 2003 when he resigned.
After first appearing on Who Wants To Be A Millionaire?, he has made more appearances on the small screen.
With his wife Diana, Charles took part in Celebrity Wife Swap and Celebrity Couples Edition in 2006.
The reality show regular has also appeared on Hell’s Kitchen, The Games, Celebrity Poker Club and Celebrity Fear Factor.
Celebrities are often paid to appear on such shows and taking part in the shows is sure to have helped Charles continue to earn.