[6] Since 2019, Allan has starred as Ciri in the Netflix original series The Witcher, alongside Henry Cavill and Anya Chalotra.

[7] This is a fantasy drama adapted by Lauren Schmidt Hissrich from The Witcher book series by Polish writer Andrzej Sapkowski.

[10] Allan's character Ciri appears together alongside Henry Cavill's Geralt of Rivia in season 2, training to become a fighter.

[11] In 2021, Allan was cast in the lead role of the Alberto Corredor directed horror film Baghead, alongside Ruby Barker.

[12] In 2023, Allan was selected to play Mae, a young woman who tags along with lead actor Owen Teague, in the 2024 film Kingdom of the Planet of the Apes.