Ashley was born in East London.

In 2011 he played the title role in a touring production of Romeo and Juliet. He then trained at the Oxford School of Drama, graduating in 2014. Just before graduating, he was cast by Brian Helgeland, in the Kray Twins biopic Efsane (2015), opposite Tom Hardy. Then a few short weeks later, he would start filming on Tarzan Efsanesi (2016) alongside Alexander Skarsgård, Margot Robbie, Samuel L. Jackson and Christoph Waltz.

In addition to his ever-growing Film and TV career, he is also a very accomplished stage actor.