Of all the characters in “Game of Thrones,” Esme Bianco‘s Ros is the main one who doesn’t have her origins in George R.R. Martin‘s “A Song of Ice and Fire” novels. The Winterfell prostitute moved up in the world when she joined forces with Aiden Gillen‘s Littlefinger in Season 2, and Bianco teased that Ros will continue to move up the King’s Landing food chain in Season 3.

“She digs deeper. She kind of gets stuck into some intriguing plots,” Bianco told Zap2it at the “Game of Thrones” Season 3 premiere. As for which actors she got to work with in Season 3, Bianco hedged, “There’s always a little bit more Aiden, but I don’t want to give too much away. I don’t want to spoil anything for you.”

And it would be a spoiler, because not even fans of the books know the direction that Ros’s story will head in.

“Nobody does! Even I don’t,” Bianco said with a laugh. “It’s absolutely fantastic, and it also means that I can try and bribe [showrunners] David [Benioff] and Dan [Weiss] to like write me little bits I want. So at the end of Season 1 I was like, ‘Hey, what do you guys say to a horse in Season 2?’ They’re like, ‘Well, we’ll see.'”

She continued, “I was so jealous because everyone else has these amazing costumes and they’re learning archery and they’re learning horse riding and I’m like butt naked. So I’m like, ‘Okay, how about Season 2 either give me a costume or I’ll ride naked if I can have a horse. They’re like, ‘We’ll see what we can do.’ I got a costume.”

Bianco shared why she thinks it’s important to have a wild card like Ros on a show like “Game of Thrones.” She said that it’s key to keep the series “fresh” when so many people have read the books it’s based on.

“Even though [the showrunners have] taken the books and they’ve kind of run in their own direction with it a little bit, I think it’s good to have those characters,” she said. “Also you need those characters sometimes to sort of fill some of the gaps. The thing that’s great about Ros is that she’s a woman who’s very different from some of the other women on the show. There’s Daenerys who’s really strong and then there’s like the more major characters, but I think she kind of fills in for some of the subtleties, I guess. And also she helps pull people’s secrets out. Everyone likes to tell Ros a secret. She’s a listening ear.”

One of Bianco’s most significant scenes in Season 2 was the one where she was sent to have sex with Jack Gleeson‘s King Joffrey. He turned his sadistic streak on Ros and another prostitute named Daisy, showing just how evil he actually is.

“That was one of the hardest scenes that I filmed,” Bianco told Zap2it. “I didn’t expect it to be because [Gleeson] is such a nice guy. He’s so sweet, and then I walked on set with him and he just turns. It was really inspiring actually because that flip, it was major. I’ll tell you what, I was like head to toe goosebumps that entire day. And it was hard to film. It was a brutal, brutal scene.”

She added, “It was hard for me to watch, and I know my mum was really upset after she saw that scene, which is saying something considering how amazing my parents have been and how much they had to put up with in Season 1. That was one of the scenes that really got them.”

“Game of Thrones” returns to HBO on March 31 at 9 p.m. ET.

Posted by:Terri Schwartz