#4 Tommaso Ciampa (WWE NXT)
Long before Tommaso Ciampa dominated WWE's Black and Gold brand NXT, he appeared as a side-character on WWE TV in 2005. On an episode of SmackDown that year, Ciampa appeared as a lawyer, Thomas Whitney, representing Muhammad Hassan and had an in-ring segment with The Undertaker.
He looked completely different back then with a head full of hair and a clean-shaved face, the picture of which you can see above. Ciampa read a statement from Hassan to The Undertaker before The Phenom attacked him.
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Tommaso Ciampa then went on to wrestle on the independent circuit and for promotions like TNA/IMPACT Wrestling. He returned to WWE in 2015 and formed a tag team with Johnny Gargano on NXT, collectively known as DIY.
Ciampa and Gargano went on to win the NXT Tag Team Championships soon. The two then had a massively personal rivalry against each other, having multiple amazing matches. Many claim their rivalry to be one of the best in NXT history.
In 2018, Tommaso Ciampa defeated Aleister Black to win the NXT Championship for the first time. He had an amazing reign but was unfortunately forced to relinquish the title in March 2019 due to his injuries.
While there were chances that his injury could force him into an early retirement, Ciampa returned to NXT later that year. He has since been a crucial part of the Black and Gold brand and it is to be seen when or if WWE moves him over to either RAW or SmackDown.