
Helena Mattsson (born 30 March 1984) is a Swedish actress living and working in Hollywood. Mattsson was born and raised in Stockholm, Sweden, had roles early on in Wild Side Story and other cabarets there, and moved at a young age to London, England, to attend theatre school. When she was 19 years old she moved to Hollywood. Her first role was in a short-lived TV series called Sweden, Ohio in 2004. In 2007 she starred in Species: The Awakening, and has been cast in the film You and I. Mattsson also appeared in the music video of Primal Scream's "Country Girl" in 2006. She appeared in the Touchstone Pictures film Surrogates and also in three episodes of the ABC series Desperate Housewives as Irina and in three episodes of Nikita as Cassandra Ovechkin. She played Alexis Blume in the TV series 666 Park Avenue.

The Rookie
TV • 2018

CSI: Crime Scene Investigation
TV • 2000

The Mentalist
TV • 2008

CSI: Miami
TV • 2002

NCIS: Los Angeles
TV • 2009

Desperate Housewives
TV • 2004

Two and a Half Men
TV • 2003

American Horror Story
TV • 2011

Fargo
TV • 2014

CSI: NY
TV • 2004

Cold Case
TV • 2003

Magnum P.I.
TV • 2018

Nikita
TV • 2010

Workaholics
TV • 2011

Rules of Engagement
TV • 2007

Legend of the Seeker
TV • 2008

Iron Man 2
MOVIE • 2010

The Defenders
TV • 2010