She was nominated for a Guldbagge Award for her role in Dalecarlians, and stars as Saga Norén in the Danish/Swedish co-produced TV series The Bridge (Danish: Broen; Swedish: Bron).

[3] Helin played the leading role of Chief Inspector Klara in the film At Point Blank (Rånarna) in 2003.

[5] In the UK, the series attracted more than a million viewers per episode, and she was called a role model for women with Asperger syndrome.

[7] In the same year, she acted in a British/German TV series directed by Oliver Hirschbiegel, about divided Berlin in the 1970s, called The Same Sky, in which she spoke in both German and English.

[12][13] Helin married Daniel Götschenhjelm, a priest in the Church of Sweden and former actor, whom she met at drama school.