In 2007, at the age of 16, Miller made his television debut when he portrayed Kyle Brown in the BBC drama series Grange Hill.

From December 2012 to January 2013, he starred as Prince Charming in the pantomime production of Cinderella at the Grand Theatre in Blackpool.

Miller joined the cast of Scott & Bailey, in late 2013, as series regular Rob Waddington.

[9] In 2011, Miller co-founded the charity Once Upon a Smile with Daniel Jillings in memory of former Emmerdale producer Gavin Blyth.

After being told they would be unlikely to conceive naturally, Miller explained that they were about to begin the IVF process, when they found out Steph was pregnant.