Television actress most well known for her portrayal of Layla Fry on the Australian children's series Mortified. She is also notable for her recurring role as Carly Walsman on Sea Patrol and as Miranda Kelly on Neighbours.
She took acting classes at the Film and Television Studio International.
In 2008, she played Cindy in an episode of H20: Just Add Water.
She was born and raised in Brisbane, Australia.
On the series Mortified, actress Marny Kennedy played Cahill's character's on-screen sister.