Katherine's acting debut came at age 12 in a production of The Lion, The Witch And The Wardrobe at St Julie's Catholic High School in Woolton. Katherine later secured a place at the Guildhall School of Music and Drama in London, where she won the Prestigious Gold Award, which goes to just one exceptional performer each year. Morely also studied at the Central Academy of Drama in Beijing, the Etre bougé par l’autre workshop, the Prima del Teatro, and for the Everyword Festival at Everyman and Playhouse Youth Theatre, in Liverpool. Since Katherine graduated with a three-year BA honours degree in 2012, she has had a consistent acting career.