Regular Show/Geronimo Stilton


 * Mordecai as Geronimo Stilton
 * Rigby as Benjamin Stilton
 * Muscle Man as Trap Stilton
 * Margaret as Thea Stilton
 * Benson as Will Shortpaws
 * Pops as Professor Von Volt
 * Eileen as Pandora Woz
 * and more