Oh. What. Fun.

Havana Rose Liu as Lizzie Wang-Wasserman Dustin Lewis as Wes Zac Oyama as Marcus Wang-Wasserman Andy Cohen as Andy Cohen (uncredited) Serene Lee as June Koko Iwasaki as Dancer / Nutcracker John Candy as Del Griffith (from 'Planes, Trains and Automobiles') (archive footage) (uncredited) Jessejames Locorriere as Denny 'Duck' Dana Michelle Pfeiffer as Claire Denis Leary as Nick Dominic Sessa as Sammy Jason Schwartzman as Doug Devery Jacobs as Donna Roxy Rivera as Jess Trevor David as Bernard Steve Alderfer as Bobby Felicity Jones as Channing Hedy Nasser as Jill Steve Martin as Neal Page (from 'Planes, Trains and Automobiles') (archive footage) (uncredited) Laila Robins as Susan Page (from 'Planes, Trains and Automobiles') (archive footage) (uncredited) Eva Longoria as Zazzy Tims Rose Abdoo as Jane Maude Apatow as Mae-bell Alla Greene as Vika Jon Levine as Travis Will Ferrell as Buddy (from 'Elf') (archive footage) (uncredited) Victor Rivera as Sound Guy Kurt Braunohler as Knut Chloë Grace Moretz as Taylor Joan Chen as Jeanne Wang-Wasserman Melanie Kiran as Fiona Audrey Hui as Diane Lauren Revard as Denise Saidah Arrika Ekulona as Martha Danielle Brooks as Morgan Ethan Costanilla as Teenage Mall Cop Demián Castro as Tommy

Siddhartha Khosla Original Music Composer Marcelle Coletti Stunts Sara Tremblay Visual Effects Producer Alan D'Antoni Stunts Christian Wood Visual Effects Supervisor Kevin Waterman Stunts Tiffany Little Canfield Casting Alisa Lepselter Editor Tim Monich Dialect Coach Ian Cymore Dialogue Editor Ashani Roberts Stunts Shayne Hartigan Extras Casting Bernard Telsey Casting Michael Showalter Director, Producer, Screenplay Lex D. Geddings Stunts Mark Weinhandl Stunts Jane Rosenthal Producer Ashley Rae Riddick Stunts Nicole Marines Stunts Wally Crowder Stunts