Mhairi Calvey was born in Scotland and grew up on the Isle of Arran.

At the age of 5 she made her acting debut playing the role of 'Young Murron' in Mel Gibson's film 'Braveheart', which went on to win five Oscars. Shortly after filming Mhairi returned to school and focused on her education. She later studied her BA (Hons) in Acting at the Guildford School of Acting. Mhairi has since played roles in feature films 'Fear the Invisible Man', 'The Eastern Front' and 'Robert the Bruce' for which she won Best Newcomer at The National Film Awards. Mhairi's TV credits include BBC drama 'Boat Story' directed by Jack and Harry Williams. Mhairi started production company Dream Reel Entertainment and she went on to direct, write and produce her debut short film 'Gaslight' about the effects of domestic abuse.