Vince Vaughn Dan Trunkman Dave Franco Mike Pancake Sienna Miller Chuck Portnoy Tom Wilkinson Timothy McWinters James Marsden Jim Spinch June Diane Raphael Susan Trunkman Nick Frost Bill Whilmsley Ella Anderson Bess Trunkman Anastasia Sanidopoulos Mousis Farm Goer Britton Sear Paul Trunkman Michael Krabbe Dandlin Desk Clerk Uwe Ochsenknecht Maarten Daaervk Jil Funke Pretty German Girl Bonita Friedericy Helen (as Bonita Fri Edericy) Clement von Franckenstein Armand (uncredited) Jeffrey Corazzini Businessman (uncredited) Susan Garibotto Business Woman (uncredited) David Brückner Band Singer on Stage (uncredited) Noelle Trudeau Topless Pillow Girl (uncredited) Rebecca Olejniczak Sexy Spa Girl (uncredited)