Michael Showalter Elliot Sherman Director, Actor, Screenwriter, Writer Elizabeth Banks Caroline Swann Actor Michelle Williams Cecil Mills Actor Justin Theroux Bradley Lake Actor Zak Orth Wendall Wimms Actor Michael Ian Black Ed Actor Catherine Lloyd Burns Stella Actor Peter Dinklage Benson Hedges Actor Paul Rudd Dan Abbott Actor Abby Wathen Kimberly Actor Melisa McGregor Lilly Actor Madeleine Dauzart Wedding Guest Actor Jack McBrayer Elliot's Friend Actor Galt Neiderhoffer Producer Daniela Taplin Lundberg Producer Reagan Silber Producer Celine Rattray Producer Jonathan Shoemaker Co-Producer Jeffrey K. Miller First Assistant Director Caroline Kaplan Executive Producer Jonathan Sehring Executive Producer Tim Orr Cinematographer Jacob Craycroft Film Editor, Film Editing Sarah Flack Film Editing Craig Wedren Original Music Theodore Shapiro Original Music Mark White Production Design Lisa Scoppa Set Director Jill Kliber Costume Design Sophia Lin Unit Production Susan Faris Casting