Laetitia Nel, Pieter Jacobus van Zyl and Tharina Human, who is a teacher at the school, appeared in the Vanderbijlpark Magistrate’s Court.
The child, 6, was kidnapped from in front of Laerskool Kollegepark on Monday morning last week.
Among those arrested is Human, a Grade RR teacher at the school. She has since been suspended pending a disciplinary hearing.
The child was snatched in front of the school as she, her mother and little brother were getting out of the car.