The Children’s Book Characters of Yiannis’ Great Adventures
– meet the unforgettable children’s book characters who bring the story to life!
Stefano
Stefano is one of the most beloved children’s book characters in the series
Stefano is a clever, adventurous mouse with a nose for trouble — and for finding food. Living in the antique shop Catarina back in Greece, Stefano is known for his mysterious nighttime adventures, his love of relaxing in his favorite chair, and the occasional “accidental” broken pottery incident.
But when his best friend Yiannis suddenly disappears, Stefano refuses to give up searching for him. Brave, determined, and surprisingly resourceful, he sneaks onto trucks, travels across the ocean aboard giant cargo ships, and even journeys deep beneath the streets of New York City. Along the way, Stefano discovers that the world is far bigger than he ever imagined.
No matter how dangerous the adventure becomes, Stefano never stops moving forward — because for him, friendship is worth crossing oceans for.
Captain George
Captain George is the wise and fearless leader of the sea mice aboard the great cargo ships. He knows every rope, crate, and hidden corner of the ocean vessels. With his old captain’s hat and calm voice, he helps lost mice travel safely across the world. He may seem gruff at first, but deep down he cares deeply for every mouse under his watch.
Guthrie
Guthrie is one of the hardworking sea mice and one of Yiannis’ very first friends during his journey across the ocean. Strong, dependable, and always ready to help carry supplies, Guthrie has a big heart and an even bigger appetite for adventure. He’s the kind of friend you always want beside you when the waves get rough.
Perry
Perry is clever, quick-thinking, and always busy tying ropes, checking maps, or helping the crew aboard Captain George’s ship. He loves exploring new places and is always excited to meet travelers from faraway lands. Perry’s cheerful attitude helps everyone stay hopeful, even during the toughest storms at sea.
Lucas
Lucas helps keep the sea mice crew running smoothly by organizing food supplies and helping the ship mice prepare for long journeys. Quiet but dependable, Lucas is always there when someone needs help. He’s especially good at making sure nobody goes hungry during long trips across the ocean.
Suzi
Suzi is smart, adventurous, and knows New York City better than almost anyone. She quickly becomes one of Yiannis’ closest friends after he arrives in America. Brave and resourceful, Suzi always seems to know the safest shortcut, the best hidden food spots, and exactly how to escape danger when trouble appears.
Ruby
Ruby is Suzi’s energetic little sister and one of the boldest mice in New York City. She loves excitement, tightrope-walking across wires, and exploring every corner of the city. Ruby may be small, but she’s fearless, funny, and always ready to jump into the next adventure.
Nico
Nico is the wise old subway mouse who lives deep beneath the streets of New York City. Wearing tiny wire glasses and full of stories, Nico knows all about the hidden mouse world beneath the subway tunnels. He quickly becomes a friend and guide to Yiannis and helps connect mice from all over the city.
The Shopkeeper
The kind old shopkeeper in Greece owns the antique shop called Catarina. Even though he never sees the mice living among the antiques, he unknowingly takes care of them with crumbs, warm pastries, and cozy surroundings. His shop is filled with the comforting smells of bread, olive oil, cinnamon, and home.
The Family with the Baby
This sweet little mouse family lives inside the antique shop in Greece. The mother and father work hard to care for their squeaky baby, who seems amazed by absolutely everything in the world. They bring warmth, laughter, and a feeling of family to the shop, reminding everyone that home is about the people you love most.
Ricky & Rusty
Ricky and Rusty are the energetic twin mice of the antique shop Catarina. These two are always tumbling into trouble, practicing karate kicks, and dreaming about heroic rescue missions. Loud, funny, and completely inseparable, the twins may argue about who is braver, but when their friends need help, they leap into action together.
The twins are also famous for throwing some of the best little mouse parties in the entire shop. From music and dancing to crumb feasts and silly games, Ricky and Rusty can turn even an ordinary evening into a celebration. Whether they’re sneaking through dangerous offices, hiding from humans, or accidentally causing chaos. These lovable children’s book characters make every adventure twice as fun.