#7 Austin Aries
Thank God TNA/Impact has given Austin Aries so many chances with them, after a few fallout's between both sides. Aries debuted for TNA in 2005, where he mostly wrestling both against and alongside Roderick Strong. He parted ways with TNA in early 2006 after choosing to miss TNA shows in favor of Ring of Honor shows.
He returned in 2007, under the name Austin Starr, with a gimmick inspired by Starsky and Hutch's Huggy Bear character. Aries left TNA again later that year over his attitude problems.
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Aries returned yet again for his most famous and successful run with TNA in 2011, 'earning' a TNA contract after an excellent match with Low Ki, Zema Ion and Jack Evans and Destination X, and won the X Division Championship shortly after, and held it for almost a year before vacating it in exchange for a World Championship match, and then beat Bobby Roode for the title at Destination X 2012. Aries would go onto hold the X Division Championship 5 more times, as well as the Tag Team titles with Bobby Roode in an entertaining tag team called the Dirty Heels.
After a failed run with WWE, Aries returned to Impact this past January and has since become one of the biggest stars in wrestling, arguably the biggest outside of WWE, where he has held the Impact World Championship 2 more times, and is also the Impact Grand Champion, as well as holding several other Championships outside of Impact.