The Traitorous ElderEdit
In Spyro: A Hero's Tail, Red was once a Dragon Elder, but he wanted more power and attempted to overthrow the leader, however, he failed and was banished.
Many years passed and Red returned to the Dragon Realms with Dark Gems. Spyro and Sparx discovered that the Dragon Realms were being plunged into darkness, and teamed up with Hunter, Sgt. Byrd, and Blink in order to take down Red and his unholy alliance of Gnasty Gnorc and Ineptune. The five heroes battle their way through new homeworlds, and eventually defeat Red. Red escaped, captured The Professor and forced him to build him an army of robots.
Finally, Spyro tracked down Red in his secret laboratory, where Red had become a robot himself. Spyro defeated him, and The Professor shrunk Red down to a very small size, so he won't be able to attack the Dragon Realms again.
The Shadow RealmEdit
In Spyro: Shadow Legacy, Spyro and Sparx returned back to the Dragon Realms to find them in ruins. They soon discovered that The Sorcerer was attempting to seize control of the Dragon Realms using dark, shadowy mirrors of each Dragon Realm (called the Shadow Realms). Spyro learned the art of "Dragon-Kata" and the use of magic from the Dragon Elders, and set out to rescue those The Sorcerer held captive, and defeat The Sorcerer himself.
After clearing the Dragon Realms and Avalar of the shadowy influences, Spyro found Red in the Forgotten Worlds. After defeating Red, it became apparent that Red was merely a pawn in The Sorcerer's plan to destroy the Dragon Realms. Spyro then battled his way through the rest of the Forgotten Worlds and fought and defeated The Sorcerer.