The Adventures of Captain Planet is an animated superhero show. Its original run was on TBS but reruns were added to the Kids' WB! schedule in the late 90s.
The show focuses on five teenagers who are all given magic rings by Gaia, the Spirit of Earth. Kwame from Africa, Wheeler from North America, Linka from Soviet Union (changed to Eastern Europe after the Soviet Union's collapse), Gi from Asia and Ma-Ti from South America. When the powers of the five rings are combined (Earth, Fire, Wind, Water and Heart), an environmental superhero, Captain Planet, is summoned.
The show was known to have famous celebrities (including Jeff Goldblum, Meg Ryan and Sting) voice some of the villains.