15. The Undertaker ($17M)
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Wrestling professionally since 1984, The Undertaker is one of the oldest pros still making appearances. While it’s believed that he retired back in 2017, the 17-time WWE champion still shows up at multiple events per year.
He has an incredible and almost unbeatable presence in the WWE, hence his former undefeated WrestleMania record – at one point, he was 21-0. This streak ended when he finally lost to Brock Lesnar.
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