Whilst having moved into Children's TV in recent years as a voice of Sir Robert Norramby in Thomas the Tank Engine , at 71 , despite not looking his age, he can no longer play the boyish "young Barry " roles any longer ,which have been a large part of his acting life Citizen Smith, Carry on films et al . I imagine with not that work on the horizon narrating a story for an audio novel is a good move and pays the bills.