|Home world:||Planet Clean|
|First appearance:||Ultraman Leo episode 25: "The Rhinoceros Beetle is a Space Invader"|
Alien Clean (クリーン星人 Kurīn Seijin? Clean Star-people) was an alien from the planet Clean. They first appeared in Ultraman Leo episode 25.
Subtitle: Fantasy Alien (幻想宇宙人 Gensō Uchūjin?)
- Height: 170 cm
- Weight: 65 kg
- Origin: Planet Clean
Planet Clean was beautiful planet until an experimental rocket CS137 sent from Planet Earth accidentally crashed into the planet. As retaliation they sent one of their kind and their Satan Beetle to destroy Earth. The Alien Clean tricked a small boy who had sense of aversion to environmental pollution into thinking that the Satan Beetle was a hero to the environment to use him as a shield against Earth's defense force, MAC. After unleashing Satan Beetle Alien Clean revealed his plan of Earth invasion to the boy and left him die with the rest of planet Earth. However, Satan Beetle was destroyed by Ultraman Leo. It is unknown what happened to the Alien Clean after this.
- Alien Clean never physically appeared, only showed up in a dream.
- Actress: Toru Hanabusa
Powers and Abilities
- Dream contact: Alien Clean can contact a person in their dream.
- Satan Beetle: Alien Clean can command this monster for their invasion.
|Ultraman Leo Kaiju & Seijin|
|Red Giras | Black Giras | Alien Magma | Alien Tsuruk | Kanedoras | Alien Karly | Kendoros | Vekira | Guiro | Ron | Alien Kettle | Bango | Alien Vibe | Antales | Alien Flip | Alien Atler | Alien Wolf | Bat Girl | Batton | Alien Boze | Bock | Dogyuh | Alien Alpha | Northsatan | Garon | Littre | Alien Coro | Renbolar | Carolyn | Alien Sarin Dodole | Gamerot | Alien Clean | Satan Beetle | Pressure | Oni-on | Planet Apple Chicken | Alien Paradai | King Paradai | Uriy | Uringa | Alien Magma II | Rolan | Alien Virmin | White Flower Spirit | Princess Kaguya | Kiraa | Alien Akumania | Ashuran | Sevengar | Taishoh | Alien Atlanta | Alien Mazaras | Specter | Alien Babarue | Black Directive | Silver Bloome | Black Dome | Absorba | Deemos | Black Garon | Blizzard | Mayuko | Hungler | Black Terrina | Satan Mora | Nova | Alien Bunyo | Black End|