Luke is the primary caregiver of his younger sister, Posy, and possesses certain traits associated with autism, including sensory sensitivities. He is characterized by his compassion for others and his struggle to feel accepted after experiencing ridicule.

Albert is a powerful and influential witch serving as a minister in the British Guild of Sorcery, known for his ruthlessness and desire to maintain power. He opposes Sera and becomes a central antagonist in her story.

Clemmie, primarily in the form of a fox, resides at the Batty Hole Inn due to a curse-gone-wrong aimed at Albert Grey. She is a member of a prominent witch family, facing challenges with self-interest and loyalty as she seeks to regain her human form.