Ool, Ruler of Saturn, once almost invaded Earth. His preliminary research led him to the erroneous conclusion that Zatara was a typical Earthling, and that this planet's people were far too dangerous to attack. Zatara persuaded Ool that constructing an irrigation system on Saturn was a better approach to solving his population's food problem, and war was averted.
- Teleportation via Cosmic Ray Beam
- Enemy of Zatara
- 1 Appearances of Ool (Earth-Two)
- Images featuring Ool (Earth-Two)
- Quotations by or about Ool (Earth-Two)
- Character Gallery: Ool (Earth-Two)