Special Guest Stars Amanda Michalka as Lainey Lewis Guest Stars Kenny Ridwan as Dave Kim Ken Lerner as Lou Schwartz Zayne Emory as JC Spink Judd Hirsch as Ben "Pop-Pop" Goldberg Zach Callison as Brian Corbett Carlos Lacamara as Tom Co Starring Noelle Filippone as Concert-Goer Charles Janasz as Hobo Jim Gianna Bilby as Ashley Uncredited Patton Oswalt voices Narrator / Adult Adam Goldberg