JP Karliak Boss Baby (voice) Pierce Gagnon Tim (voice) Jodi Benson Lala Doo-Da (voice) Ray Chase Ding Dong Dongle (voice) David W. Collins Dad (voice) Dana Davis Jingly Jangly (voice) Mary Faber Tina (voice) Justin Felbinger Danny Petrosky (voice) Nick Fisher Grateful Boy (voice) Ariana Greenblatt Tabitha (voice) Max Mittelman Adult Tim (voice) Matthew Moy PoopyDoopy (voice) Kevin Michael Richardson Jimbo (voice) Brandon Scott Hendershot (voice) Kari Wahlgren R&D Baby Simmons (voice) George Lopez Santa (voice)