Billy and Mick Steel Billy is lively boy, full of plans for playing tricks on people. He is in the same class as the main characters. He is in a wheelchair after a road accident, and he likes to make the most of whizzing around in it, especially in the park. Billy's older brother, Mick, is a good-natured teenager. He sometimes babysits for the Macdonalds. Billy's little sister, Jasmine, is born in Step 4. Ravi and Sanita Gohill Ravi is Billy's close friend and also goes to Story Street Primary School. He and Billy spend a good deal of time together, with Stinker, Billy's dog. They set up a Zoo together in Step 8. You will meet, Sunita, Ravi's younger sister in the early stage of the programme. She is very bright and loves reading. Their parents, Mr and Mrs Gohill, own a shop on Story Street. Mr and Mrs Green The Greens are an elderly couple living in a bungalow on Story Street. They are the owners of Scrap, the small dog that Sam sometimes takes for a walk. Mr Green is also known as 'Grumpyboots', find out why he is so grumpy in Step 10. Mr and Mrs Lee The Lees are a Chinese couple who live on Story Street. Mrs Lee is a nurse at the hospital, she nurses Mouse better in Step 3. The Teachers The friends have four different teachers at Story Street Primary School, who feature in many of the stories. As well as providing the children with guidance in difficult times, such as helping to deal with bullies (Step 12) they also bring some fun into the stories by helping to catch escaped animals and causing chaos on schools trips. They feature in many Steps.