What makes this potential ally even more intriguing?

She is one of them.

(and is played, like all the other clones, by Tatiana Maslany).

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Credit: Ken Woerner/BBC America

She has vital information, but getting her to share it is another matter altogether.

We spoke to co-creators John Fawcett and Graeme Manson to get the scoop on the new addition.

ENTERTAINMENT WEEKLY: Okay, gentlemen: What can you say about this new clone?

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Ken Woerner/BBC America

GRAEME MANSON:Her name is M.K.

A mysterious name for a mysterious character.

FAWCETT:And very elusive.

And quite highly skilled and very smart.

Whats very cool about it is this is a clone who has been self-aware for some time.

MANSON:Yeah, for longer than any of us.

So she is this really fun new character that were going to see in season 4.

FAWCETT:Its a little bit of both.

Shes very security conscious.

She knows more than Sarah does so she knows how dangerous the whole thing is.

But this girl is very unwilling.

MANSON:Yeah, shes a reluctant source.

So what do you want to say about the sheep mask?

MANSON:You get it?

FAWCETT:Dolly the sheep.

MANSON:We had a lot of fun going through masks to figure this one out.

We saw about 5,000 masks.

FAWCETT:We wanted it to be spooky but kind of childlike at the same time.

We wanted a little balance.

And for moreOrphan Blackintel, follow Dalton on Twitter@DaltonRoss.

A version of this story appeared inEntertainment Weeklyissue #1397/98, on newsstands Tuesday.