#2 Ethan Carter III
Ethan Carter III or EC3 as he is more popularly known will forever be the one that got away for the WWE – well, that is unless they are able to bring him back into the fold, of course. He was a part of the company's developmental program for six years between 2007 and 2013 before he finally left NXT to try his luck on the indy scene.
It was his stint in TNA that made him a megastar. Competing as Ethan Carter III – the arrogant nephew of then TNA owner, Dixie Carter – EC3 rose swiftly through the ranks and enjoyed a purple patch where he became TNA World Heavyweight Champion.
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He is one of the most gifted people on the Impact Wrestling roster, and while he won't be able to use his EC3 gimmick in WWE, there is definitely a place for him in his old home should he ever decide return.