Helena Mattsson (born 30 March 1984) is a Swedish actress, currently 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 where she has since stayed. 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.

David Rodman "Dave" Annable (born September 15, 1979) is an American actor. He played the character of Justin Walker on the television series Brothers & Sisters from 2006 to 2011. He is set to play Henry Martin on ABC's new show 666 Park Avenue.

Annable was born in Suffern, New York. He grew up in Walden, a small town in New York, where he played baseball, rugby and hockey. He attended Valley Central High School and graduated in 1997.

He attended college at the State University of New York at Plattsburgh (SUNY Plattsburgh). There, he became involved with the student-run TV station, Plattsburgh State Television (PSTV), working both on production behind the scenes and on the air as well. He hosted many shows at PSTV, including Late Night with Dave Annable, Cardinal Sports, and The Roommate Game. Annable credits Plattsburgh State Television for preparing him for his successful career in television. Annable dropped out of college in 2003 to pursue his acting career.

After leaving SUNY Plattsburgh, Annable studied acting at the Neighborhood Playhouse in New York with Richard Pinter.

Rachael Taylor (born 11 July 1984) is an Australian actress and model. She made her leading role debut in the short-lived Australian program headLand. She then made the transition to Hollywood, appearing in the films Transformers, Shutter, and Splinterheads.

Taylor was born in Launceston, Tasmania, the daughter of Christine and Nigel Taylor. She attended Riverside High School. Taylor had wanted to be an actress since she was a child, performing in many school plays.

Taylor modelled for Skye-Jilly International and competed successfully in the State finals of Miss Teen Tasmania. She has appeared in a number of American productions – such as television movies about Natalie Wood and the making of Dynasty (where she played Catherine Oxenberg), and the horror movies Man-thing and See No Evil. Taylor played Sasha Forbes on the short-lived Australian drama series headLand. On 3 April 2006, she was nominated for a Logie Award for Most Popular New Female Talent for her role on headLand. Her most prominent role to date was as "Maggie", a signals analyst, in the 2007 Transformers, where she appeared alongside Megan Fox and Shia LaBeouf. Taylor confirmed that she would not be returning for the Transformers sequel.