After finishing drama school, Riddell was cast in the BBC Scotland production Strathblair and guest-starred in a number of popular TV shows such as Taggart, Casualty and The Bill. His big break came in the critically acclaimed Channel 4 series The Book Group and the comedy-drama No Angels.[3] In addition to his television work, he regularly works in theatre productions.[4]
Personal life
His partner is the actress Frances Carrigan, and they have twins, Eve and Felix.[5]