Sophie’s loving guardian and a nonconformist bachelor who rescues her after a shipwreck when she is an infant. He raises her in his clutter-filled London home, offering her an unusual but nurturing upbringing.

A stern agent from the National Childcare Agency who challenges the suitability of Charles as a guardian for Sophie. She embodies the traditional values and rigid social norms of Victorian society.

A resourceful and cautious French boy who lives on the rooftops of Paris and becomes Sophie’s ally. He is noted for his agility and knowledge of the city’s rooftop terrain.

Sophie’s long-lost mother, remembered by Sophie in fleeting memories and described as an unconventional musician. Her mysterious past becomes the focal point of Sophie’s quest.