Frieda was introduced to Holby General as a nurse last year, but it was later revealed that she was a trained doctor back home in the Ukraine. Since then, the straight-talking character has decided to apply for an F1 position at the hospital.
Speaking to Digital Spy about Frieda's forthcoming storylines, Fedori explained: "I think it's going to be quite different this year. She's going to be stepping into a different role, as she's decided to be a doctor, so we'll see her tackling a very different position.
"She won't be able to hide behind being a nurse and someone else having the rest of the responsibility, because it's at the doctor where the buck stops. So now she's going to have most of the responsibility for her patients. But don't expect her to be toned down in any way!
"I think we'll also be fleshing out more of Frieda's character. I'd love to see more of her life outside of the hospital - to explore what she does in her spare time, because she definitely has a very rich life outside of the hospital, as far as I'm concerned!"
Meanwhile, asked what could be in store between Frieda and Oliver Valentine (James Anderson) this year, Fedori replied: "I can't say too much on that one! There's been talk about things heading in all sorts of directions, and I can't give this one away!"
Fedori is in the running for the 'Best Newcomer' prize at this year's National Television Awards, which take place in London tonight. She is nominated in the category alongside Coronation Street's Paula Lane, EastEnders' Ricky Norwood and Emmerdale's Marc Silcock.
> Click here to read our interview with Olga Fedori
> Click here to read more from Olga Fedori in Soap Scoop