The adventurous son of the plantation owner, who befriends Sugar despite societal norms, and learns about racial injustices through their friendship.

A young Chinese worker who forms a bond with Sugar, sharing his culture and becoming a protective brother figure to her.

An elderly Black man who acts as a surrogate grandfather to Sugar, known for his storytelling and leadership among the River Road workers.

An older Black woman who cares for Sugar with strict discipline, yet occasionally reveals her softer side, especially through her gift for cooking.

The owner of River Road plantation, who struggles with post-Civil War changes and initially disapproves of Sugar and Billy's friendship.

Billy’s overprotective mother, initially resistant to his friendship with Sugar, but grows to accept it as she adjusts her old ways.

The respected elder of the Chinese workers at River Road, known for his kindness, storytelling and leadership.

The overseer at River Road plantation, characterized by his overt racism and violent tendencies towards both Black and Chinese workers.

A black-and-white cat adopted by Sugar, symbolizing freedom and companionship, often present during joyful moments on the plantation.