#4. Zach Gowen
Zach Gowen was forced to amputate his left leg due to cancer when he was only eight years old. Despite this, he was determined to become a pro wrestler.
Gowen was trained by long-time indie star and ROH manager Truth Martini. Martini and Gowen came to the decision that the latter should not wrestle with an artificial leg, due to the dead weight and the fact that Gowen could not control the limb, making it dangerous for the other wrestlers.
Gowen wrestled for TNA/Impact for a time, but then joined WWE during the period when Hulk Hogan was wrestling as Mr. America. He saved Mr. America from a beat down administered by Roddy Piper and Sean O'Haire. Piper was the one who first pulled off Gowen's prosthetic leg.
Gowen and Mr. America teamed up for a time, but then Gowen became the ultimate underdog. While he seldom won, his amputee status made him an instant sympathetic baby-face jobber. Any heel could garner a ton of heat just by wrestling him.