Cleo, before Matilda, has played Gretl in The Sound of Music; Daughter in ENRON and Little Cosette in Les Miserables. She is also featured on the soundtrack for Mâché Man, A British short film, set to be released in fall of 2013. She performs the song 'Made of Paper'
Cleo was born in Cyprus but now lives in East Sussex. She attends Chailey School and is in Year 7.
Cleo is represented by Abacus Agency.