The Armstrong and Miller star will lead proceedings later this summer as members of the public show off unusual powers in the hope of winning a cash prize from the judging panel.
Comedians Micky Flanagan and Joe Lycett will form the panel, with a special guest judge joining them each week.
"From a man who can read hundreds of barcodes, to high-speed mobility scooter racing, plus men who can identify species of fish just by having them slapped in their face - no challenge is too weird, wacky and wonderful for this show," the broadcaster teased.
Following the performances, each member of the panel will put a secret cash value of up to £1,000 on the talent. If the hopeful can correctly guess the amount the panel thinks the act is worth, they will win the amount. If they guess below the awarded total, they win their guessed amount. However, if they overestimate, they will leave with nothing and exit through the "epic fail" door.
"BBC In-house Entertainment is proud to bring the UK's unsung heroes and their quirky talents to BBC One's Saturday night audiences in Epic Win," said Katie Taylor, head of in-house entertainment and events. "What's not to like about a fishmonger who when blindfolded can identify different types of fish while being slapped around the face?"
Flanagan filmed a pilot episode of Epic Win alongside presenter Jason Byrne, ex-EastEnders actor Joe Swash and comedian Roisin Conaty earlier this year.
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