He has recorded the audio versions of the books The Horse and His Boy, Out of the Silent Planet, and Perelandra by C.S. Lewis, 20,000 Leagues Under the Sea by Jules Verne, and Attention All Shipping by Charlie Connelly, which was selected in June 2008 as one of the top 40 audiobooks of all time. In 2006, he recorded an abridgement of A Spot of Bother by Mark Haddon. He is also a regular narrator on BBC Radio 4's Book at Bedtime.