Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

"A Hard Day's Night" is the pilot episode of the American television medical drama "Grey's Anatomy", which first aired on March 27, 2005 on the American Broadcasting Company (ABC). The episode introduces main characters and surgical interns Meredith Grey, Cristina Yang, Izzie Stevens, Alex Karev and George O'Malley. Other main cast members include Derek Shepherd, Miranda Bailey, Richard Webber and Preston Burke. These five interns become faced with what their future holds as they enter the realm of surgery at Seattle Grace Hospital. Question: A Hard Day's Night included the resident in general surgery character who has been portrayed by which actress since Grey's Anatomy began production? Answer: Chandra Wilson
Other main cast members include Derek Shepherd, Miranda Bailey, Richard Webber and Preston Burke.