In August 2008 she was chosen to play Lara Croft in promotions for the upcoming video game Tomb Raider: Underworld.
She trained at the Urdang Academy in Musical Theatre and graduated in 2007 with a Distinction. She has represented Great Britain as a professional display gymnast. She is currently also a teenagers' gymnastics coach, choreographing the winning junior team at the British National Championships. Since 2007, she has been a registered actress.
In August 2008, when working as a receptionist at a golf club, she was announced as the new Lara Croft model for the latest video game featuring the heroine, Tomb Raider: Underworld. Carroll replaced previous Lara model Karima Adebibe, who retired from the role earlier in the year. Carroll held the position until 2010, and is the final official Lara Croft model, as the use of models has been discontinued for future Tomb Raider games.