Isla Lang Fisher (; born 3 February 1976) is an Australian actress. Born to Scottish parents in Oman, she moved to Australia at age 6. She appeared on the children's adventure series Bay Cove and 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 Scooby-Doo (2002), I Heart Huckabees (2004), Wedding Crashers (2005), Hot Rod (2007), Definitely, Maybe (2008), Confessions of a Shopaholic (2009), Rango (2011), Bachelorette (2012), and Arrested Development (2013).