Beast King Golion
In Beast King Golion, Planet Altea was planet in the same star system as Planet Jarre, on the edge of the Great Dark Nebula.
A long time before the events of the series, the lions of Golion landed on Altea. They were discovered by the royal government, and the lions' lairs, and the transports system used to shuttle the pilots, was completed by the early 1980's.
The Galra Empire attacked and invaded Altea in 1984. The Galrans captured King Raimon, his wife, and his children. The king refused to surrender, so under Daibazaal's order, Zadak executed them. The Galrans took most of the Alteans as slaves. But the then one-year old Princess Fala was rescued by Raible. They hid in the ruins of the royal castle for the next fifteen years, with Raible raising Fala. The Alteans who remained on the planet hid in caves and bunkers.
In 1999, five space explorers from Earth crash landed on Altea while trying to escape from Galra. They meet Raible and the princess and become partners with the lions, bringing back Golion.
Altea is attacked by Galra several times over the next few months. In 2000, the Leo Alliance is formed, with Fala as its leader. The alliance soon takes down Galra.
In Voltron: Legendary Defender, Altea was the home planet of Princess Allura, her father King Alfor, Coran, and the Space Mice. The birthplace of Voltron, it was attacked by Zarkon's Galra Empire 10,000 years ago, with Alfor choosing to hide the Voltron Lions and Allura rather than have Voltron formed to battle their enemy. Sadly, Altea and all the planets in its solar system were utterly destroyed as a result, with only the six residents of the Castle of Lions being known to survive the tragedy. This left the Galra Empire virtually unopposed in its efforts to conquer the galaxy over the course of the subsequent ten millennia, until Allura was awakened by the future Paladins of Voltron.
- Altea was the Japanese name for the planet from which Voltron originated in Beast King GoLion the Japanese anime upon which the original Voltron: Defender of the Universe and Voltron: Legendary Defender were based. In Defender of the Universe the planet was named Arus, a name given to a separate planet in Legendary Defender.