The Detention Kids are a group of 5 kids on a field trip and one of the tour guides speculate they are on vacation.
- Joao is a 13-year-old Brazilian-American boy.
- Sanjay is a 12-year-old Indian-American boy, voiced by Ishan Sharma.
- Jane is an 11-year-old Chinese-American girl, voiced by Callahan Clark.
- Luka Ramirez is a 10-year-old Mexican-American boy, voiced by Trey Bumpass.
- Sasha is a 7-year-old Russian-American girl, voiced by Kennedy Peil.
- Sasha is the only one of the kids who is referred to by name in the film. The names of Jane and Sanjay only appear via the end credits.
- Although they wear private school uniforms the kids all wear accessories that normally couldn't be allowed in private schools such as black wrist cuffs and roller skates.
- The detention kids walk through the same walkway where Manolo and Joaquin reunite.
- The Detention Kids met each other on the day they served their detention. 
- All end up serving their detention because the gods made it happen.