A former Royal Marine medic, Cassidy lost his right leg from below the knee while on a tour of Afghanistan during the summer of 2011, having been caught up in an explosion when an IED was triggered.
Prior to his armed forces career, he attained a masters degree in Music and Dance. He was the winner of The People's Strictly for Comic Relief in 2015, and made another appearance in the show's Christmas Special that year. He was also a contestant on Celebrity Eggheads in 2017.
His other onscreen credits include roles in Doctors, Holby City and the short film Centurion.
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