Guest Stars Liam O'Brien voices Professor Maelstrom Michael Hawley voices Zack Abby Trott voices Ivy Sharon Muthu voices Dr. Bellum Mary Elizabeth McGlynn voices Coach Brunt Dawnn Lewis voices Chief Rafael Petardi voices Chase Devineaux Paul Nakauchi voices Shadowsan Charlet Chung voices Julia Argent Toks Olagundoye voices Countess Cleo Sharon Muthu voices Agent Zari Trevor Devall voices Roundabout Rhys Darby voices Neal the Eel Mike Hagiwara voices Hideo Mary Elizabeth McGlynn voices Police Officer #2 Liam O'Brien voices Gondolier #1 Rafael Petardi voices Online Translator Trevor Devall voices Docent Trevor Devall voices Police Officer #1 Trevor Devall voices Guard Michael Hawley voices Gondolier #2