It really is a shame; he has impeccable timing and a great character dynamic. I thought his conversation with Charles Dickens in Episode 3 was brilliant (in no small part due to Mark Gatiss' script).

I played catch-up with Doctor Who this weekend; starting with the Eccleston series, so I've still got a ways to go. Took in three episodes: "World War Three", "Dalek", and "The Long Game" (featuring a delightfully villainous Simon Pegg).