A guard at the American Samoa Juvenile Detention Center is facing 10 charges of rape.
Okesene Alo was one of four public safety officers arrested last month.
The others are facing drugs charges.
Mr Alo, who was being held in custody, face a total of 35 counts, including 10 counts of rape involving a minor of 16 years old or younger, eight alleged drugs offences and six of aiding or permitting the escape of a prisoner.