Geronimo Stilton (TV series)

• Geronimo Stilton (voiced by Brian Drummond) is the publisher of The Rodent's Gazette, and also the president of the Geronimo Stilton Media Group. He is also the world chess champion after the events of the episode "Gem Gang". He is portrayed as brave in the television series, even though in the books he was never depicted himself as valiant and has no glasses. Geronimo has a love of knowledge and has a sense of ethics and morals, but despite this he is still a bit of a klutz. He leads one of the most successful publication groups in the world. Geronimo stars in the book and television series alongside his younger sister Thea Stilton, his prankster cousin Trap Stilton, and his nephew Benjamin.
• Thea Stilton (voiced by Sarah Edmondson) is Geronimo's younger sister and the special correspondent for The Rodent's Gazette. For a time, Thea taught a journalism class at whale island university, and while there she met five mouselets. These mouselets, Pamela, Paulina, Violet, Colette, and Nicky named themselves the Thea sisters, after their favorite teacher, Thea Stilton. She flies the team in her metamouse , which can turn into a submarine, boat, and plane to locations that Thea, Trap, Benjamin, and Geronimo are exploring for an articles in The Rodent's Gazette. Thea is always ready to jump into action. She also drives a motorcycle and a Helicopter which is portrayed to the book.
• Trap Stilton (voiced by Richard Ian Cox) is Geronimo's cousin. He lives in a trailer located in a beautiful park and is an expert chef, yet none of the meals he cooks up are tasty to Geronimo. He travels along with Geronimo when he's called on. Trap is a joker and loves to play tricks on others, especially Geronimo who he considers to be gullible. Still, he has a big heart and doesn't play jokes to be mean. He is also easily frightened.
• Benjamin Stilton (voiced by Erin Mathews) is the 12-year-old nephew of Geronimo and is a hip near-genius at computers and electronics. He is dynamic and perk, although he can be impatient sometimes, and he loves skateboarding and sports. He works with his uncle at The Rodent's Gazette, running a computer news blog after school. He has a robot mouse named Max.
• Pandora Woz (voiced by Moneca Stori in season 1 and Monica Smouter in seasons 2–3) is Benjamin's best friend though her name is different then it was in the book. She is very enthusiastic about the adventures Geronimo travels on, and she often comes along for the ride. She likes Thea because they share a similar high-spirited enthusiasm for life. Trap and Pandora also get along as well for both like to play pranks on Geronimo. She has a tendency to get distracted easily which leads her into danger. Pandora also has a hamster, Mr. Nibbles.
• Sally Ratmousen (voiced by Patricia Drake) is the main antagonist of the series. She is the publisher of The Daily Rat, The Rodent's Gazette's main competitor and rival. She is the primary cause of trouble for the Stilton crew when they are in New Mouse City, and she has a personal grudge against Geronimo.

• Simon Squealer (Brian Drummond) works for The Daily Rat as the personal assistant of Sally. He would do any dirty business for Sally. Simon protects his job at all costs, and goes to great lengths to dig up dirt on some famous mouse in New Mouse City.
• William Shortpaws is Geronimo's grandfather, and former owner of The Rodents Gazette as he started his newspaper empire by selling newspapers as a child. Currently, he oversees Geronimo's operation of his company, and he knows exactly the way he wants things to be. Occasionally when Geronimo least expects it, he drops into The Rodent's Gazette to check on how he is doing even though he has retired.
• Chippy P. Crunchrat (David Kaye) a greedy businessman who is willing to do anything in his power to make his name in glory when his Chip franchise went downhill, he is a recurring antagonist in season two from kidnapping Geronimo to causing national disasters in South America (Temple of the Dragons Gasp) to melting the Arctic circle (Pole Rat).
• Professor von Volt (Lee Tockar) is a scientist, inventor, and an old friend of Geronimo. He invented Benjamin's Benpad and his robotic mouse. He always stays in his lab to have some experiments and sometimes like to help Geronimo whenever he is free. He is a recurring character from inventing a time machine (The Cave Mouse) to a translating device (If I Could Talk to the Animals). He also invented many other such as the Mind Mingler (Trade off) and a copier (Double Trap).
• Ratswami (voiced by Alistair Abell) is an antagonist and hypnotist for New Mouse City. He once hypnotized the people of New Mouse City in (Hypno Tick Tok). He is one of the recurring characters in season one when he hypnotized Geronimo to be his servant, which he was framed as a suspect to an overnight robbery. He also hypnotized Geronimo's grandfather (William Shortpaws) to marry Sally so she can take over The Rodents Gazette (A Brief Engagement).
• Prince Nogouda (voiced by Trevor Devall) is also an antagonist who lives in a palace in the Bandell jungle. It is revealed in (Operation Shufongfong) that he captured rare animals from all over the world including two rare lizards. In (Clean Sweep) him and his guards captured Thea to marry him and be his Princess in order to save his wealth and riches before its too late.
• Those Guys (voiced by Tom Bergeron and April Stewart) are the octopus-like monsters (the Benjamin and Pandora lookalike, respectively) and bosses of Benjamin Stilton and Pandora Woz. Original known as the Basement Monsters, they have adult like voices. That Guy is 22 years old, and That Other Guy is 4 years old.
• Jason Agnew (voiced by himself) is the teacher of Benjamin Stilton. He is 24 years old. He makes students mad and forces Benjamin to make a Adolf Hitler-like costume on one occasion.

Geronimo Stilton debuted on Rai 2 in Italy on September 15, 2009,[3] and later the show premiered on Rai Gulp. The series aired on Ici Radio-Canada Télé and YTV in Canada,[8] M6 in France, Cartoon Network in Spain, Okto in Singapore, Nickelodeon in the Netherlands, Belgium, Denmark, and Sweden, NTV7 in Malaysia, Eleven in Australia in July,[9] and TVNZ in New Zealand.[10] In the United States, the series was added to Kabillion's VOD service. In the United Kingdom and other countries in Europe, the series was streamed on the Nintendo 3DS on February 6, 2017.[11] The third season debuted on Knowledge in Canada on June 30, 2018.[12] The series is also available on Netflix. In the United States, it airs on G4TV.

Imavision released the first two seasons on DVD in both English and French in Canada between 2010 and 2013.[13] Their successor, Unidisc, distributed the third season in 2017.

In the United States, Entertainment One released 16 episodes from the first season across four DVDs release between 2013 and 2015.[14]

In Australia, the first season was spread across four DVD volumes and distributed by a joint venture by Universal & Sony Pictures Home Entertainment in 2014.

In 2013 The shows trailer was on YouTube Movies in Both Canada and the USA, which showcased the season one collection as the well as the first episode (Operation Shufongfong).

Emily Ashby of Common Sense Media rated Geronimo Stilton 4 out of 5 stars, stating the series "[engages] kids in characters who star in a TV show and a book series and giving families a reason to enjoy their stories in both formats together."[33]