Stone Protectors was a line of action figures released by the Ace Novelty Company in 1993 as the last and greatest attempt to market the Troll craze to young boys.

The Stone Protectors were originally the Rock Detectors, a band of awful rock musicians. Thrown out the back door of a club, they found five magical stones which gave them troll-like appearances and special skills (not the least of which is playing good music). This put them at odds with the music-hating Zok and his henchman Zink.

• Cliff became a "rock climber," seemingly to cash in on the growing enthusiasm for "extreme sports." He is the band's drummer.
• Cornelius (the group's leader) became a samurai with an assortment of appropriate weaponry (katana, shuriken, and a pair of nunchaku made of microphones). He's the band's lead singer, but also plays guitar.
• Chester became an expert at wrestling and received great strength. He plays saxophone, but in the SNES game also plays bass guitar.
• Angus became a "soldier" and ostensibly an expert at turning mundane objects into weapons ("I'll turn anything into an arsenal!" from the commercials). He plays keyboard.
• Max became an "accellerator" with in-line skates. He plays guitar.

A second line of sports-themed figures was released.

A short-lived cartoon series was also produced based on the characters. In it, Princess Opal of Mythrandir splits the legendary Great Crystal into six pieces to keep it out of Zok's hands. Zok manages to capture one piece, but the other five bond with the future Stone Protectors, spiriting them away to Mythrandir to help Opal upset Zok's schemes and spread a sentiment of peace and freedom with their music. It lasted only one season.

A SNES game based on the show and toys was released in 1994.

Animated television series | Children's television series | 1990s TV shows in the United States