"I never wanted it to be a group of teenagers who were pally from the very start. I hate that convention in teen drama where they meet and instantly become high-fiving friends for no apparent reason. I felt I had to really work for that as a writer and earn the right for them to have a relationship. It's a gradual process; it has to feel organic. When one of the characters gets in trouble in episode two, they don't immediately say, "Yes, let us help you, now we are the Fantastic Four we must work together to fight crime!" It can't work like that."

"I guess that's why I never felt it was an impossible challenge to get into the mind of a teenager. I'm 36 now but I'm pretty certain falling in love at 16 is the same as it was 20 years ago"

"Iwan Rheon as Simon Bellamy"

"Robert Sheehan as Nathan Young"

"More important than any message for me was the question of how you handle being a superhero when society is already looking down on you. That's the experience of a young offender. It's also about having the responsibility of greater powers; my characters don't always use it for the greater good. That's where the fun starts."

"Matt Stokoe as Alex"

"Natasha O'Keeffe as Abbey"

"Jim Moriarty - Andrew Scott"

"Molly Hooper - Loo Brealey"

"Mycroft Holmes - Mark Gatiss"

"Detective Inspector Greg Lestrade - Rupert Graves"

"Mrs. Hudson - Una Stubbs"

"Dr. John Hamish Watson - Martin Freeman"

"William Sherlock Scott Holmes - Benedict Cumberbatch"

"I'm Sherlock Holmes, the world's only consulting detective. I'm not going to go into detail about how I do what I do because chances are you wouldn't understand. If you've got a problem that you want me to solve, then contact me. Interesting cases only please. This is what I do:"

"Yeah, well the first day, I was in the dressing room and looking in the mirror, and looking down at the arena. And they were pulling the robots into the arena on an invisible twine because nothing was working. And I was thinking: "Oh my God, what have I done with my career?" And you know, within the blink of an eye, it was the most watched show on BBC2."

"Wil Johnson - DC Michael Skelton"

"Barbara Flynn - Judith Fitzgerald"

"Lorcan Cranitch - DS Jimmy Beck"

"Kieran O'Brien - Mark Fitzgerald"

"Christopher Eccleston - DCI David Bilborough"

"Robbie Coltrane - Eddie "Fitz" Fitzgerald"

"Geraldine Somerville - DS Jane "Panhandle" Penhaligon"

"Ricky Tomlinson - DCI Charlie Wise"

"Kim and Andrew kiss*"

"Rachel bowls the ball*"

"Rachel and Eddie share their first kiss*"

"Anthony Head - Uther Pendragon"

"Katie McGrath - Morgana Pendragon"

"Richard Wilson - Gaius"

"Angel Coulby - Guinevere (Gwen) Pendragon"

"Colin Morgan - Merlin"

"Bradley James - Arthur Pendragon"

"John Hurt - The Great Dragon, Kilgharrah"

"(Singing) Ing tha naame of Jesus! Ing tha naame of Jesus!"

"I am going to Kennington! Cheers, mate!"

"(To woman with poodle) Eh, take your sheep off my bus! What does this look like, Noah's ark?"

"You can't come on to my bus, flapping your map about, slap my face with a four-fingered glove!"

"Cor blimey geezer mate!"