Their Game of Thrones (2011) character Lyanna Mormont was originally written to appear in just one scene. However, the producers liked their performance so much that they decided to keep the character in the show.
Bella has been vegan for a number of years and is an outspoken advocate for veganism.
Bella plays the guitar and sings.
Bella started acting as a hobby at the age of four, through the Loughborough branch of Stagecoach Theatre Arts, which they attended for seven years. They then went to the Television Workshop and began auditioning for professional roles.