Her nickname is Sosenka.
In May 2002, Olga played Lucille Cadeau in Alan Ayckbourn's House/Garden at the City Center Stage I & Stage II in New York.
Sosnovska lent her voice for the reading of the audiobook, "Saffron Skies" by Lesley Lokko.
If she didn't become an actress, Olga wouldn't have chosen to attend diplomatic school in Switzerland.
In 2004, she appeared in a television ad for DeBeers Diamonds. The following year, Olga did the voice-over for Thomasville Furniture Store's TV commercial.
Her father, Andrew, is a heart surgeon, while her mother, Nina, is an English teacher. They were political activists during the time Poland was breaking free from Communist repression.
Her film and TV movie credits include playing Atalanta in Jason and the Argonauts (2000), Linda in The Lost Empire (2001), and Debbie in Ocean's Thirteen (2007).
Olga is 5' 8" (1.73 m) tall.
Olga: I completely expected to have to change my name. It didn't for a second occur to me that I would keep it, could keep it. But in fact, I kept being told over and over again and that it's not really done anymore and I didn't have to. I don't know if that was wise or unwise of me, but there we go, I never changed it. Although, when I was thinking of changing it, it actually became very difficult for me to chose anything other than my own name, so I was relieved to not have to change it.
Olga: My parents don't think of themselves as political refugees; my father was offered a job in England. They insisted on a two-way passport, but it became a practical choice not to return.
Olga: (on her preference between stage and film/television) I used to say stage with no hesitation but the more acting I do in front of cameras, the more I feel in control of that skill, because it's a very separate skill, and the more enjoyment I get out of it.
Olga: (when she first arrived in Britain) I was 11, but I felt so much younger compared to the British girls. They were all wearing white stilettos, they all had boyfriends and sexuality was rampant. I wasn't on the same wavelength. I was quite lonely, especially before I made my first friend. But the people of Britain as a whole I loved. I never experienced any hostility towards me because I was foreign, none.
Olga: (on the differences of finding work in America and in England) The main noticeable difference is when I go up for a part in England, I'm going up against ten to fifteen people and in America I'm going up against anything from 100 to 500 people. I get more auditions in America, but my chances are considerably less, so it evens out.
Olga: (after the controversial first same-sex kiss on US daytime television -- "All My Children") I'm still coming to terms with this phenomenon of Lianca, with the devotion that I'm shown as a couple on TV, and the whole concept of fans. The letters that I get are heart breaking. It's horrible that even now in the 21st century [so many lesbians] feel the need to hide. Not everyone is confident enough to face the world, and not everyone lives in a safe environment.
Olga: (on choosing "All My Children" over a guest appearance on a British show) I was assured by AMC that this is going to be a longer-term thing, but there was nothing in writing. Having been in the business for a while, I was very skeptical. In the end, luckily, I went with this part. I'm delighted, because otherwise I would have just done a guest appearance in England, and that would have been it!
Olga: (on the advantages of growing up in two cultures when it comes to acting) Doing something like that takes you out of yourself and what you're used to and what you're comfortable with, and all the things you take for granted and forces you to look at the world through the eyes of a different culture...That's very good preparation for being an actor because that's exactly what you do for each part. You have to be open minded when portraying someone who is very different from you.
Olga: I would never have known what a powerful tool TV could be, especially daytime. It's frightening to the extent it's a huge responsibility on the producers, directors, and actors to influence minds. You can't underestimate the force of it.
Olga: (about joining the cast of "Spooks") I came during a huge transition; people had been leaving one by one anyway. So there was a sense of change so Rupert had been the new kid on the block. I think he was quite relieved to have someone else to join him. As the series goes on we eventually replace the original three characters. There were a lot of new faces anyway so I did not feel too out of place.
Olga: (on moving from Poland to England when she was a child) I think we had something like a week to pack and leave. We originally came just for a year or so we thought. It soon turned out that it was not a good idea to go back. The year turned into two years and then three and then we just ended up saying.