Tim Hill Director, Screenwriter Aubrey Plaza Grumpy Cat Voice Megan Charpentier Chrystal Actor Daniel Roebuck George Actor Russell Peters Santa Actor Veronica Alicino Collette Actor Stephen Stanton JoJo Voice Shauna Johannesen Tabby Actor Evan Todd Zack Actor Chris Williams Lance Voice Jeff Morris Screenwriter Arturo Interian Executive Producer Jamie Goehring Producer Shawn Williamson Producer Paul Leonard-Morgan Original Music Thomas M. Harting Cinematographer Tony Dean Smith Film Editing Rafi Spivak Film Editing Eric Norlin Production Design Jennifer Donaldson Art Director Roger Dole Set Decoration Vicky Mulholland Costume Design Ty Harman Casting