 Numerous further audio plays and prose short stories followed for Big Finish, for their "Doctor Who" line, spin-offs and other series ("Sapphire & Steel" and "The Tomorrow People").In 2005, he started working for the BBC, writing tie-in material for the new "Doctor Who" television series.He made his television writing debut in 2008 on the second series of "Doctor Who" spin-off "Torchwood" and subsequently wrote three two-part stories for "The Sarah Jane Adventures" and two two-part stories for "Wizards vs Aliens".