Bradley Cooper returns to the show, this time with his ‘Hangover 2′ co-star Ed Helms, ‘Parks and Recreation’s’ positive thinker Rob Lowe and ‘Doctor Who’s’ Alex Kingston.

Among the guests on Graham's sofa are Oscar-winning actress Reese Witherspoon, who discusses her new film This Means War; comedian Reginald D Hunter; and Doctor Who and Upstairs Downstairs star, Alex Kingston. Plus there is music from indie band the Musgraves.