Guest Stars Liam O'Brien voices Professor Maelstrom Michael Hawley voices Zack Abby Trott voices Ivy Sharon Muthu voices Dr. Bellum Dawnn Lewis voices Chief Mary Elizabeth McGlynn voices Coach Brunt Rafael Petardi voices Chase Devineaux Paul Nakauchi voices Shadowsan Toks Olagundoye voices Countess Cleo Liam O'Brien voices Boris Michael Goldsmith voices Gray Liam O'Brien voices Vlad Liam O'Brien voices Acme Agent Osric Chau voices The Troll Liam O'Brien voices Teacher Osric Chau voices Teen Boy Mary Elizabeth McGlynn voices Woman