Marriott was born in St Margaret's at Cliffe, Kent, England.
He joined The Royal Ballet in 1988 and danced a varied repertoire before being promoted to Principal Character Artist in 2003.
Outside of The Royal Ballet, he has also danced with Adventures in Motion Pictures, in Matthew Bourne's production of Swan Lake.
He has also choreographed a pas de deux for Darcey Bussell, which was performed at the Sadler's Wells Theatre, and also choreographed The Red Shoes for Bussell's theatre tour Viva la Diva.
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