Guest Stars Vince Vaughn as Freddy Funkhouser Ursula Burton as Director Lori Alan as Young Larry's Mom Rose Zachary Fineman as Young Larry's Brother Ken Trent Eisfeller as Waiter #2 Seth Rogen as Himself Josh Gad as Chiropractor Brad Grunberg as Jonas - Roofer Elizabeth O'Donnell as Chiropractor's Receptionist Tony Wade as Male Driver Marc-Sully Saint-Fleur as Costume Designer Zach Reino as Jason Steinberg Iris Anthony as Miriam Clubok Talia Tabin as Hostess Franqi French as Customer Service Agent David Rosove as Production Assistant Owen Streicher as Dylan Gino-Charles Villanueva as Roofer's Assistant