12-year-old Sue is a lone wolf. Due to a potion invented by her mother, she is suddenly able to become invisible. But when mum is kidnapped, Sue will need the help of her new friends Tobi and App to rescue her mother and hunt down the criminals.
| Actor | Role |
|---|---|
 Ruby M. LichtenbergSue Hartmann | Sue Hartmann |
| AAnna Shirin HabedankKaya 'App' Wells | Kaya 'App' Wells |
 Lui EckhardtTobi Grimm | Tobi Grimm |
 Victoria MayerMaria Hartmann | Maria Hartmann |
 Luc SchiltzChristoph Hartmann | Christoph Hartmann |
 Jeanne WernerLenia Romanowa | Lenia Romanowa |
| LLina Isabell SturmChrissi | Chrissi |