#4 R-Truth
R-Truth is currently one of the longest-serving veterans on the WWE roster. He has been contracted to the company since 2008 but this run is actually his second stint with the company.
Truth had initially signed with WWE back in 1999, where he used the moniker K-Kwik. He would team up with Road Dogg to compete in tag team competition and also went on to win the Hardcore Championship twice.
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However, R-Truth has achieved much more during his current run. He won the United States Championship by beating The Miz and then later was involved in the WWE Championship picture again when The Awesome One was the champion.
R-Truth's exploits for the WWE Tag Team Championships with Kofi Kingston were interesting, to say the least. He also recaptured the US title recently by picking up a roll-up pin against Shinsuke Nakamura before dropping the title again.
R-Truth has been reduced to a humorous act of late but his segments involving the 24/7 Championship have been comedy gold.