Isobelle Molloy (born 6 October 2000) is an English child actress, best known for her portrayal of Amanda and later, Matilda Wormwood in the West End version of Matilda the Musical. She had her film debut as Young Maleficent in the 2014 Disney fantasy film, Maleficent.
Molloy began her career as a dancer when she was three. Aged 11, she portrayed Amanda Thripp, a pig-tailed schoolgirl in the West End version of Matilda the Musical since the show began in November 2011.
After the two actresses who portrayed Matilda Wormwood at that time had left, Molloy took over the title role, starting from 15 April 2012 at the Cambridge Theatre. "I only had to do two auditions before they offered me the role and to be honest I was shocked," said Molloy, expressing her feelings when getting the role. "But I am not nervous about taking over as Matilda, I know the show, the stage and all the adults in the cast so it will be a lot easier for me."