Martin Freeman hated the moustache John Watson wore in The Empty Hearse. Moffat remembers the post-read-through meeting about The Empty Hearse being repeatedly interrupted by Freeman “marching over wearing a different moustache, and say, slightly bad-temperedly, ‘what about this one?’ and we’d say ‘yeah that’s lovely’ and he’d say ‘I don’t like it’ and he’d go storming off again!” “He hated it”, remembers Gatiss. “But I’m a sex symbol”, Gatiss remembers Freeman complaining.