Charlie is Alice’s classmate, a tall and loyal red-headed boy who becomes her best friend and helps her on her adventures. He is known for his mechanical skills and often helps deliver groceries in the village.

Polly is Alice’s beloved aunt who runs a pie shop noted for its extraordinary pies, which she gives away rather than sells. Her kindness and pie-making skills bring visitors and attention to their small village.

Ruth is Alice’s mother, Polly’s younger sister, who often feels overshadowed by Polly’s popularity. She is depicted as anxious and resentful but has a hidden talent for singing.

George is Alice’s father, generally remaining in the background and trying to maintain peace in the family dynamics. He often prefers to escape into reading to avoid conflicts.

Lardo is Polly’s large, pure white cat, known for his disagreeable temperament with everyone but Polly. He is left in Alice’s care after Polly’s passing.

Miss Gurke is the strict and enigmatic school principal known for her fascination with bodybuilding. She quickly becomes a suspect in the story’s mysteries.

Sylvia, who is later revealed to be Jane Quizenberry, is a reporter and frequent visitor in search of Polly’s pie recipe. She is involved in various mysterious activities after Polly’s death.