Well known for her Golden Globe nominated performance as Elizabeth Woodville in mini-series The White Queen. She also appeared in the 2014 film Hercules and played Llsa Faust in the 2015 blockbuster Mission: Impossible - Rogue Nation. In 2017, she starred in The Greatest Showman.
She first made her mark as a soap opera actress in the role of Anna Gripenhielm in Nya Tider from 1999 to 2001. She previously attended the Adolf Fredrik's Music School in Stockholm.
She ran an Argentine dance studio on the Swedish south coast.
She was born in Stockholm, Sweden and grew up in the Vasastaden district of the city. Her mother Rosemary had moved from England to Sweden before Rebecca was born. She had a son named Isac with her then-boyfriend Ludwig Hallberg. In February 2018, she revealed she was expecting her second child.
She starred alongside Minnie Driver in the Lifetime mini-series The Red Tent.