In 2006, Turnbull graduated from the Liverpool Institute for Performing Arts (LIPA).
In 2008, he guest-starred in the short-lived ITV medical soap opera The Royal Today, as Liam Dooley.
In 2013, he guest-starred as Paul in the BAFTA-nominated[4] fantasy/supernatural CBBC television series Wolfblood.
[citation needed] In 2006, Turnbull made his professional theatre debut as Geordie in Ian Brown's stage adaption of Colin Teevan's How Many Miles To Basra?
[5] Turnbull played the role of the daughter in Selma Dimitrijevic's production of her play titled Gods Are Fallen and All Safety Gone, alongside Sean Campion who played the role of the mother, and presented by Grayscale.