Ian Joseph Somerhalder (born December 8, 1978) is an American actor and model, best known for playing Boone Carlyle in the TV drama Lost and Damon Salvatore in the TV drama The Vampire Diaries.

Somerhalder was born and raised in Covington, Louisiana, the son of Edna, a massage therapist, and Robert Somerhalder, an independent building contractor. Raised Catholic, he attended St. Paul's, a private Catholic school in Covington. He embarked on a modeling career from age 10 to 13, and by the age of 17 he decided to go into acting.

In the summer of 2000, Somerhalder starred in the short-lived WB series Young Americans, a spin-off of Dawson's Creek. He played Hamilton Fleming, the son of the dean of a prestigious boarding school. In 2002, Somerhalder played bisexual character Paul Denton in Roger Avary's adaptation of Bret Easton Ellis' novel, The Rules of Attraction, alongside James Van Der Beek, Shannyn Sossamon, and Jessica Biel.

In 2004, Somerhalder scored his breakthrough role when he played Boone Carlyle in the hit TV show Lost. Despite his character's death in the twentieth episode of the first season, Somerhalder returned to the role of Boone for seven more episodes between 2005 and 2010, including the series finale. Somerhalder was the first actor to be cast in a role for the series and the first character to die.

Radha Rani Amber Indigo Ananda Mitchell (born 12 November 1973) is an Australian actress. Her film roles include Pitch Black, Finding Neverland, Phone Booth, Man on Fire, Silent Hill, and The Crazies.

Mitchell was born in Melbourne. Her mother is a model turned designer, and her father is a filmmaker. She had a spiritually inclined upbringing, drawing from Hindu culture by her parents.

Her first name, Radha, is of Hindu origin and is the name of the soulmate to Lord Krishna. The other parts of her name coming from an Indian origin are Rani ("Queen") and Ananda ("Joy"). She attended the private St Michael's Grammar School.

Mitchell began her career starring on ABC TV's Sugar and Spice in 1988. Progressing to Neighbours in 1994, Mitchell played two separate characters over her three-year stint on the show.

In 1997 she starred in two films, High Art and Everything Put Together, both Independent Spirit Award winners. Other films—including Pitch Black opposite Vin Diesel, Phone Booth opposite Colin Farrell, and Man on Fire opposite Denzel Washington—soon followed.