Sel is an important secondary character, a Merlin who is one of Bree’s love interests. He grapples with his demon nature and evolving relationships as he faces internal and external conflicts.

William is a secondary character and the Scion of Gawain, known for his healing abilities in the Order. He provides support to Bree and the group, dealing with his own losses and responsibilities.

Alice is Bree’s childhood best friend, known for her cleverness, support, and interest in the Legendborn world. She demonstrates loyalty and learns about the magical world alongside Bree.

Valec, a cambion and broker, owns the Crossroads Lounge. He offers an example of balancing human and demon natures and helps others navigate deals between humans and demons.

Nick is Bree’s close ally and one of her love interests, known for his support and understanding of her struggles. He embodies the conflict between familial expectations and personal morality.

Erebus is an enigmatic and complex antagonist, initially appearing as a protective mage but later revealed to have a deeper, long-term plan entwined with magical and historical elements.

The Regents serve as authoritative figures within the Order, representing institutional power and tradition. They play key roles in the systemic conflicts Bree faces throughout her journey.