Sam is a real dynamo – full of dreams and schemes – she has a great sense of fun!  Sam is not afraid to take risks and this is how she discovers Strange Street. She longs to have a pet, any sort of pet, but she lives in a flat. As Sam grows up, she will have to deal with her mum and dad's separation.

Jojo is Mouse's outgoing twin sister who loves football and horses. Throughout the stories, Jojo shows that she can stand up for herself and her brother. They live with their mum, dad, baby brother Pip, and their pets. Jojo and Mouse do most things together and, as their house backs on to the park, they spend lots of time playing there.

Ben King

Ben is the oldest of the friends. He is thoughtful and perceptive, and often his quick thinking gets the friends out of trouble (usually caused by Sam). He likes playing with computers – like his dad. His mum, Anna, is a fitness instructor and he has an older sister, Tessa, who he argues with on a regular basis. He is also very close to his grandparents, Big G and Little G, who live near Story Street. His paternal grandparents live in Trinidad.

Donut, whose real name is Duncan, moves to Story Street with his family and pet parrot in Step 7. He lives with his flamboyant mother and his stepdad, who is a builder, and his little sister Cleo. Donut is a friendly and outgoing boy who soon becomes the joker of the group.

Mouse’s real name is Mark, but Mouse suits his character better, so that’s what everyone calls him. He is a bit nervous, but he proves that he can be brave when he needs to be. He is fascinated by outer space, and his bedroom is full of planet mobiles and posters. Mouse and his twin sister Jojo share everything, but as they grow up, they have to learn to be individuals.

Cleo Hart

Cleo’s full name is Cleopatra, which suits her very well as she loves dressing up and pretending to be a queen! Cleo takes after her mother Cassandra, as she enjoys being the centre of attention and desperately wants to be one of the gang, even though she is three years younger than them.