Alien Species

Orishan are a race of naturally-armored molluscan humanoids from Kiusana, a desert planet in the Andromeda Galaxy.[1]



Orishan are a red humanoid mollusk-like species with either two large eyes or four slitted rectangular eyes, small grey spikes and black spots on the back of their legs and shoulders, port holes on their four fingered hands, and what appear to be hoods covering their heads.

Powers and abilities[]

Through the holes in the palms of both hands, Orishan can blast high pressure streams of water. Similarly, they can absorb moisture from the air using those same holes.

Orishan have very durable exoskeletons, which protect them from physical damage.

Orishan are strong enough to lift and throw a Buglizard.

Orishan can manipulate different sources of water, including normal Earth water,[2] into various shapes. As such, they can produce water whips for close combat.

Similar to Kinecelerans, Orishan have retractable visors hidden under their hood-like coverings. Their hoods are also retractable.[3]

Orishan are able to thrive in bone-dry climates due to their ability to control water.[1] Despite hailing from a desert planet, they can also breathe underwater.[4]

Orishan are immune to gases, such as the fog generated by a Buglizard.

Orishan can generate protective bubble shields around themselves using their water for extra defense.


Though nigh-impervious to physical damage, there is a limit to the durability of an Orishan's exoskeleton.

Orishan are vulnerable to intense heat and energy-based attacks, such as those generated by a Prypiatosian-B.

Orishan can be trapped by an Evolved Arachnichimp's webbing.

Orishan cannot walk on slippery surfaces, such as a Polymorph's slime.

Orishan can be immobilized in ice, such as a Necrofriggian's ice breath.

Despite their combat skills, Orishan can easily be defeated by a Revonnahgander with the same power level as Kundo.

Unlike Cascans,[5] Orishan cannot turn water into either ice or steam.[3]

Culture and society[]

Orishan are treated with great respect from the other species on Kiusana for having the ability to extract hydrogen and oxygen from the air and create water as a natural byproduct, which they interpret as "magical". As a result, one cannot go anywhere on Kiusana without finding statues, monuments, carvings, and cave paintings dedicated to the Orishan.[1]


Orishan glass is known to be the best at adapting to multiple atmospheres.

Notable members[]

  • Water Hazard: An Omnitrix transformation used by Ben Tennyson.
    • Hose Hands: An alternate version of Water Hazard used by the Ben Tennyson of Dimension 23.[3]
  • Bivalvan: An Orishan that had been captured by Aggregor and Water Hazard's genetic donor.


  • Ultimate Kevin: 17-year-old Kevin Levin of the Prime Timeline transformed into an amalgamation of every alien available in the Ultimatrix prior to traveling to the Forge of Creation, including Water Hazard. He would later absorb all of Ultimate Aggregor's powers, such as those he acquired from Bivalvan.
  • Ultimate Aggregor: Aggregor transformed into an amalgamation of all five aliens he collected, including Bivalvan.



  • Orishan have been confirmed to exist in the Ben 10 reboot continuity. However, while Water Hazard's DNA is currently not in the Omnitrix, it will "get added later".[5]
  • Orishan are genetically related to the Cascans, as both as red sapient hydrokinetic species hailing from the Andromeda Galaxy. However, both races are considered separate species, their differences being likened to those of panthers and jaguars.[5]


  1. 1.0 1.1 1.2 According to the Water Hazard character bio included in Cartoon Network Action Pack #53
  2. According to Eugene Son
  3. 3.0 3.1 3.2 According to Derrick J. Wyatt
  4. According to Dwayne McDuffie
  5. 5.0 5.1 5.2 According to Duncan Rouleau