Merlin’s Colin Morgan has spoken to Digital Spy ahead of the upcoming Series 3 finale this weekend. Morgan reveals some pretty interesting stuff and talks a little about where Merlin is heading in Series 4.

What hints can you give us about what’s coming up in the final two episodes?
“Huge iconic elements from the legends are happening. You’ll see the formation of a certain famous band of knights, possibly seated at some form of table! There’s also elements from the past. Things that have been buried since season one are going to resurface, literally! You’re also going to see the kingdom and those who rule it overthrown and taken over by a dark force. Camelot is in dire straits. All the heroes are forced to form a vigilante gang to fight against it all.”

Will we see any returning characters from the show’s past?
“Absolutely. Some characters who haven’t appeared since series two [come back]. Lancelot’s returning and Gwaine makes another appearance. There’s also other characters from the past with an emotional link to Merlin. Emilia Fox returns as Morgause – she has a big hand in what happens. Tom Ellis, who plays Cenred, also appears. All the evil ones are coming back, but we’ve got some goodies on our side, as well!”

It seems like there’s big changes ahead for the show. Does this feel like the end of an era?
“It kind of does. It seems like things would be completely different, going into a fourth series. Having come out of the crisis at the end of the final episode, Camelot’s going to be a very different place. You see Arthur acting more like a king. Whether that means he’s really on the brink of taking the throne, I don’t know. But it’s certainly feeling very close. Merlin is also going to be a changed person. It definitely does feel like once this hurdle is jumped, Camelot is going to be a changed place.”

How would you like the character of Merlin to evolve in series four?
“Of course, this is a tale about growing up, and you never want your character to grow up too fast. Certainly the producers like to keep it as a slow boiler. I’m always keen to see Merlin making more mature decisions and that’s something that they’ve been focusing on throughout the third series. He can’t be as naive as he was when the show first began. He’s been hurt too many times and been through too much. I’d like to see my Merlin taking on more of the aspects of the Merlin of legend, with a wise head on his shoulders. I’d like to see Merlin become less naive and also concentrate more on his powers. I don’t think we’ve seen him do enough cool magical stuff. I want more cool stuff to do!”