Brandon Trost Director Seth Rogen Herschel Greenbaum, Ben Greenbaum Actor, Producer Sarah Snook Sarah Greenbaum Actor Jorma Taccone Liam Actor Sean Whalen Scientist Actor Joanna P. Adler Professor Kim Actor David Mattey Ivan Actor Geoffrey Cantor David Actor Eliot Glazer Christian Actor Jon Donahue Local Reporter Actor Simon Rich Screenwriter Evan Goldberg Producer Alex McAtee Executive Producer Ted Gidlow Executive Producer John Guleserian Cinematographer Lisa Zeno Churgin Film Editing Nami Melumad Original Music William Arnold Production Design Ian Scroggins Art Director Karuna Karmarkar Set Decoration Brenda Abbandandolo Costume Design Lynn Kressel Casting Francine Maisler Casting