Captain Ralph Crewe is the father of our little princess. He loves Sara more than anything and gives her everything she wants. He is a very loving and good father.

Emily is the doll of Sara, given by his father before leaving her in the Seminary for Young Ladies, to keep her company.

Ermengarde is the worst pupil in class. She is often scolded, and that made Sara reach out to her more. They became the best of friends, as they tried to help each other.

Becky is the servant-girl in the seminary. Even if Miss Minchin doesn't let her go near the students, Sara befriends her and they became closer when Sara's father died. Despite what happened to her, she still sees Sara as a princess.

Lottie is among the young pupils in the seminary and was often throwing tantrums to get what she wanted. Sara was the only one to calm her down and she became her Mama Sara, for they both didn't have mothers.

Miss Minchin is the headmaster of the seminary. She is strict, cranky and hated Sara's guts. She isn't sincere and shows-off the show pupils to attract other parents to enroll their children. All she cared about was money and the reputation of her seminary.

Lavinia is the oldest student in the seminary and was Miss Minchin's show-pupil before Sara came, and because Sara became the show-pupil when she arrved, she became jealous and from then on, hated Sara, just like Miss Minchin

He is the indian gentleman who lives next door, as the story starts to end, it is revealed that he is the friend of Ralph Crewe, whom he ventured with into the diamond mining business 

Ram Dass is the Indian lascar serving Mr. Carrisford and he met Sara when his monkey entered the attic she slept in, and he asked if he could get the monkey back.

Miss Amelia is the younger child of Miss Minchin, and she always appears inferior to her sister. She actually has a very soft heart, but Miss Minchin is influencing her. 

The Large family is headed by Mr.Carmichael, who si the lawyer of Mr. Carrisford. Mrs. Carmichael is stout with rosy cheeks, just like the grandparents and had many children. The children keep Mr. Carrisford company sometimes.

Anne is the poor beggar girl who received the buns given by Sara. At the end of the story, she was adopted by the baker and Sara appointed her to give bread to the poor and list the dues for Sara to pay.

Melchisedec is the rat Sara named and befriended. She gave him food crumbs for him and his family.