Ethereal Plumbers are from Planet Encephalonus (1), Feudalia (1), Aeropela e.t.c. The Members are the ones disqualified from being a Plumber. So they made up their team called The Ethereal. The Ethereal helped Ben more than any plumber team.
- Tetrax - A Petrosapien from Petropia (Leader)
- Reinsarrig 3 - A Highbreed
- Harry - A Methanosian (Swampfire), cousin to Pierce and Helen
- Nadira - A Half Crystalsapien (Chromastone)/Occultian(Sycorax) from planet of Acolytus
- Data-Bot (V1) - A Mechnaish (Byte)
- Dan - A Cerebrocrustacean (Brainstorm)
- Dana - A Cerebrocrustacean (Brainstorm)
- Jon - An Ornithian (Angel)
- Silhouette* (Fired) - A Mesypnomer (Mindmesser)
- Lawrence - A Mesypnomer (Mindmesser)
- Laura - A Japonicus Karatian (Samurai)
- Tim - A Aerophibian (Jetray)
- Tom - A Megaray, brother to Tim
- Liam - A Japonicus Karatian (Samurai), brother to Jon
- Thanatos - God of Death
- Hypnos - God of Sleep
- Saturn - God of Time
- Hecate - goddess of crossroads, sleep and fire
- Morpheus - the God of Dream
* - Silhouette was thrown out of Ethereal, because of his greed for Power.
Events where they save the world
- The Ethereal Plumbers were mentioned by Gwen when they were fighting Vilgax's Robot Drones.
- Lawrence saved Kevin from being killed by Silhouette.
- Dana (in an accident) prevented the Asteroid from crashing into Earth.
- Reinsarrig 3 and Tim attacked Hel when she was trying to get the Omnitrix
- Liam kicked Vreedle Brothers in Devil's Triumph
- Though Tetrax was a Ethereal, he didn't appear as a leader.
- Ultimos was regarded as the Leader, but Dan voted for Tetrax.
- Reiny is now a part Swampfire, Chromastone and Big Chill. He Said that he likes being a mixture to Kevin's surprise.