Isla Lang Fisher (pronounced /ˈaɪlə/; born 3 February 1976) is a Scottish-Australian actress and author. She began acting on Australian television, on the short-lived soap opera Paradise Beach before playing Shannon Reed on the soap opera Home and Away. She has since been known for her comedic roles in Wedding Crashers (2005), Hot Rod (2007), Definitely, Maybe (2008), and Confessions of a Shopaholic (2009).
Fisher was born in Muscat, Oman, to Scottish parents from Bathgate and Stranraer, and was brought up in Perth, Western Australia. They resided in Muscat because her father, Brian, was a banker for the UN. She was named after the Scottish island of Islay and has four brothers. Fisher spent her early years in Bathgate before moving with her family to Perth, Western Australia, when she was six years old. Fisher has said that she had a "great" upbringing in Perth with a "very outdoorsy life". She attended Methodist Ladies' College and appeared in lead roles in school productions.
She began appearing in commercials on Australian television at the age of nine, before going on to win roles in popular children's television shows Bay City and Paradise Beach. At the age of 18, with the help of her mother, she published two teen novels, Bewitched and Seduced by Fame. From 1994 to 1997 she played the role of Shannon Reed on the Australian soap opera Home and Away. In 1996, she won a Logie Award nomination for Most Popular Actress for her role. After leaving the soap, Fisher enrolled at L'École Internationale de Théâtre Jacques Lecoq, a theatre and arts training school in Paris and went on to appear in pantomime in the United Kingdom. She also toured with Darren Day in the musical 'Summer Holiday' and appeared in the London theatre production, Così. In 2001, Fisher was cast as Kim in the German horror film Swimming Pool.