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 Paul Nakauchi voices Shadowsan Rafael Petardi voices Chase Devineaux 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 Troy Baker voices Dash Haber Liam O'Brien voices Teacher Rachael MacFarlane voices Madame Goldlove Troy Baker voices Hugo