Geronimo Stilton Barry the Moustache (2009– ) Online
In an effort to create a big story for her news agency, Sally (owner of The Daily Rat) makes up a story about herself being kidnapped by the notorious mobster, Barry the Moustache, in the hopes of tricking Geronimo into saving her and making him look foolish. But when the real Barry the Moustache shows up, both Sally and Geronimo find themselves in trouble.
| Episode credited cast: | |||
 | Brian Drummond | - | Geronimo Stilton (voice) |
 | Erin Mathews | - | Benjamin Stilton (voice) |
 | Sarah Edmondson | - | Thea Stilton (voice) |
 | Richard Ian Cox | - | Trap Stilton (voice) (as Richard Cox) |
 | Moneca Stori | - | Pandora Woz (voice) |
 | Patricia Drake | - | Sally Rasmaussen (voice) |
| Rest of cast listed alphabetically: | |||
| Kathleen Barr | - | (voice) |
| Monica Bonetto | - | Benjamin Stilton (voice) |
 | Ghieslaine Guardiola | - | Pandora, Dutch (voice) |
| Debora Magnaghi | - | Thea Stilton (voice) |
 | Scott McNeil | - | (voice) |
| Riccardo Peroni | - | Trap Stilton (voice) |
| Towasi Piovani | - | Pandora Woz (voice) |
| Patrizio Prata | - | Geronimo Stilton (voice) (as Patrizo Prata) |
| Patrizia Salmoiraghi | - | Sally Rasmaussen (voice) |