We are slowly but surely creeping up on the premiere of "Guardians of the Galaxy" with less than a month to go and it looks like its cast members are not opposed to sharing some information and dishing some spoilers about the upcoming movie.

According to Just Jared Jr, the 26-year-old Scottish actress, Karen Gillan who stars alongside Chris Pratt, Zoe Saldana and Lee Pace, chatted with Collider about chopping off her hair, the scariest villain in the film and her character Nebula.

When it comes to shaving off her red locks the star admitted that she thought she would never have to do it.

The former "Doctor Who" star explained, "I was told even before I auditioned that the actress who got this would have to shave her head, and I didn't think I was gonna get it. So I was like, 'absolutely, I will shave my head! Sure!' (laughs).

"Then like three screen tests later, it was 'oh God, this might actually happen.' And then I got the part, and then I thought about it seriously, and I was like, 'I absolutely want to shave my head for this.' Because, I mean, the opportunity is too good to pass up."

Despite her big chop Karen Gillan admitted that things were much scarier on set. When speaking of the scariest villain in the film she said, "It has to be Lee Pace, who plays Ronan the Accuser. He's the scariest thing I've ever seen! Have you seen him?

"Ohhhh! Oh my God, it's so intimidating. Also, he's really tall, so for the first time [in a role] I'm allowed to wear heels, which is quite good.

"He's just one of the creepiest, scariest villains I've ever seen! (shivers) Ohhhh. It's horrible. And we're just creepsters together!"

When it comes to her character Nebula she explained, "I think Nebula's a really interesting character. What I really like to play around with is how jealous she is as a person. She's Gamora's sister, and there's a lot of sibling rivalry going on.

"That's the most interesting aspect about her character to me. So I really played with that and what it can do to a person, because jealousy can consume you and turn you bitter and ugly, and I've kind of played with that. And she's a total sadist. (laughs)

"She is a lieutenant of Ronan the Accuser, a daughter of Thanos, and sister of Gamora. They are on this holy mission to kind of cleanse the galaxy of all that is weak. That is her ultimate objective and what's been drilled into her as a kid."

Karen Gillan continued, "So she is brainwashed by these people, and she just wants to impress, and achieve, and be as strong as possible. That's her ultimate goal."