Innes was born in 2000 to parents Julia and Campbell; she has a younger brother named Murray.
Innes' first role was in the four-part BBC drama Single Father, as Evie.
[4] Between 2011 and 2013, she appeared in Case Histories as Marlee Brodie, daughter of the protagonist.
[5] In 2011, Innes was chosen from 20,000 applicants for the role of Maisy in Dani's House,[6][7] and she played Fiona in a 2013 episode of Dani's Castle.
[6][9][10][11] In 2015, she appeared on Hacker Time and presented a Newsround documentary called Being Me.