
Co-owners Tom Hicks and George Gillett Jr., along with Thaksin have been asked to appear before the All Party Parliamentary Football Group.
The British lawmakers are probing problems involving how Premier League teams are being run, particularly fans' concerns over foreign owners and their increasing influence.
Hicks and Gillett could use one of the hearings in the fall to air their grievances with each other since taking over Liverpool last year.
Accounts released earlier this month showed that the American owners, who gained control of Liverpool in March 2007, had net losses of $67 million by July 31, 2007. The team's chief executive Rick Parry, whose resignation was demanded by Hicks in defiance of Gillett, also was invited to testify.