Olga Korsak is a Canadian actress, former Olympic figure skater, and singer-songwriter under the stage name Livva. She is best known for her lead role in Chong Song's film Petrichor, in which she starred alongside the famous Russian-Canadian movie star Aleksey Serebryakov. Her performance as a former figure skater who decides to revive her figure skating career in her late twenties earned her the Best Actress award at the Canadian Cinematography Awards, the Hollywood North Film Festival, the New York Oniros Film Festival, and the American Golden International Film Festival. She was also nominated for Best Actress at the Moscow International Film Awards.

Olga wrote and recorded the soundtrack for the film I'm Not Afraid to Fall, which won Best Film Music at the Soundtrack Music Festival and the Venice Film Festival. Olga has starred in the award-winning horror drama Stripping the Mask and the science fiction film Artificial Selection, and also appeared in the final season of Amazon's original series American Gods. In 2024, Olga played Svetlana in Sky Theft, an award-winning Canadian feature film directed by Megan Follows. The film explores intertwined stories against the backdrop of Toronto's changing skyline and won Best Film and Best Director at the Montreal Independent Film Festival.