Originally named Aurelie, she faces early life challenges that shape her identity and relationship with Lotto. Mathilde plays a significant role in Lotto's career while concealing parts of her own past and struggles.

Lotto's best friend who comes from wealth and has a longstanding friendship with Lotto. He harbors complex feelings towards Mathilde and is involved in events affecting her marriage to Lotto.

Lotto’s aunt who is instrumental in maintaining family unity and providing support during pivotal moments. She is a persistent caregiver who plays a supportive role in the family dynamics.

Lotto's sister who, as an adult, is known for her familial strength and support. She is married with children and shares a close bond with Lotto despite her contrasting appearance.

Lotto and Rachel's mother, whose early beauty fades as her health declines. She is protective and often makes decisions with long-term consequences for Lotto, driven by her love for him and her religious beliefs.

A talented composer who collaborates with Lotto on creating an opera. His dedication to music and his interactions with Lotto play a significant role in his life.

A rebellious figure from Lotto's past who was once involved with him romantically. Her life is marked by personal struggles and pivotal decisions related to Lotto.

Lotto's father, who founded a successful company to support his family. He is dedicated to his work and family but tragically passes away during Lotto's youth.

Mathilde's mentor with whom she has a complex and influential past relationship. He plays a role in Mathilde's life and career while grappling with his feelings for her.

The biological child of Lotto and Gwennie, who has been adopted. He shares similarities with Lotto and has a personal connection to his father's work and legacy.

Rachel's wife, who shares a long-term relationship with her and is the mother of their children. The couple has endured challenges but maintains a committed partnership.

A guardian figure to Mathilde during her youth who emphasizes self-sufficiency. His detached and secretive nature defines his relationship with Mathilde.

A skilled investigator hired by Mathilde to uncover information on Chollie. Her background includes a failed acting career and she develops a fleeting romantic interest in Mathilde.

An upstairs neighbor to Lotto and Mathilde who plays a supportive role in Mathilde's personal life. She is familiar with Mathilde's secrets and remains her friend regardless.

The only relative willing to take Mathilde in after her family disowns her. She provides her a home despite living a meager and frugal existence.