June 11, 2010 (Los Angeles, CA) - Gary Coleman controversy is heating up with the discovery of another secret will which ENTERTAINMENT TONIGHT has exclusively obtained -- and a mystery woman who may stand to inherit everything!

Gary's lawyer, Randy Kester, tells ET, "Everyone's fighting over what might happen in the future," saying that if there's a book or movie deal involved, "You're really fighting over millions."

Executed on February 3, 2005 -- and filed Friday afternoon in Utah -- the smoking gun contained within the pages of the bombshell, 23-page document is that the "Diff'rent Strokes" star left everything he had to a mystery woman named Anna Gray.

Who is Anna Gray? ET has footage of the diminutive star at the 2003 Emmys with the woman now at the center of the controversy over his will, introducing her as the CEO of his corporation.

Gary's agent, Robert Malcolm, tells ET that Anna was Gary's most trusted friend, saying they had met in 1997, became friendly, and within a few months were living together as friends in separate bedrooms in Gary's Los Angeles home. Gary had asked her to help him with his corporation and he made her CEO, and Anna later moved with Gary after the star relocated to Utah in 2005 after meeting Shannon Price.

"When Shannon moved in, the relationship got difficult because Shannon didn't like the fact that there was somebody else in his life," says Malcolm, "and, of course, he sided with [Shannon], and Anna was asked to leave."

Gary's ex-wife is not named in the newly discovered will since it was written before he married her, and neither are his estranged parents, Sue and Willie Coleman, who, despite their damaged relationship with their son, told the "Today" show, "We would never have taken money from him. We weren't raised that way. ... As far as the document goes, we have no idea what that is."

Gary's will emphasized who does not get anything, as opposed to who does. Should Anna not survive him, Gary, a model train enthusiast, also chose to leave some of his prized possessions, such as his Lionel trains, to three different train shops in California.

Shannon, meanwhile, has filed a handwritten addendum in court in an effort to get her share of Gary's estate. Dated September 4, 2007, the addendum was written when the two were still married, matches Gary's signatures from both his 1999 and 2005 will -- and says Shannon is the sole heir.

Gary purportedly wrote, "I made this change of free will and was not coerced in any way. This I have done because of my personal selfishness and weakness and I love her with all my heart."

Watch ET for more developments on the Gary Coleman will controversy!

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