|Powers and Abilities|
|Voice Actor||Dee Bradley Baker|
|First Appearance||Too Hot to Handle|
Water Hazard appears as a red, mollusk-like alien. His eyes are green, and his mouth does not move when he speaks. Behind his legs and on the top of his arms are small spikes that are grey. On his shoulders and legs, there are black spots. On his hands there are port holes, which he uses to shoot water. Water Hazard has four fingers with claws on them and on each one of his feet, there is a grey spike. His lower torso is grey, with two spikes on the side of them. When Water Hazard first appeared, his voice sounded exactly like Bivalvan's. However, in his second appearance, his voice is deeper. According to Dwayne McDuffie, the reason for this is that at first Water Hazard was supposed to be a clone of Bivalvan, but later changed to help differ him from Bivalvan.
In Omniverse, Water Hazard now has four slitted eyes, and also has eyes on his chest, with crab-like features on his stomach which appear to be crab legs forming a rib cage. His hood looks a lot rougher than before, and he now has what appear to be barnacles on his shoulders, arms, legs and hands (where he shoots the water). He also has three spikes on the back of his legs and seems to have cracks on his arms and shoulders. His fingers are sharper and represent dactyls (the "moveable finger" of a crab claw). His overall armor is a darker shade of red and his grey parts are now a violet shade of grey. His voice is similar to his voice in Ultimate Alien, but sounds like that of an underwater human.
Powers and Abilities
Water Hazard has an armored exoskeleton which protects his body from damage, including radiation. Ultimate Aggregor once commented that this exoskeleton makes Water Hazard completely invulnerable, although this has been confirmed to be not true. He also has enhanced strength, as shown in The More Things Change: Part 2 when he threw Buglizard into a nearby wall. He also has a retractable visor hidden within his hood.
Water Hazard can absorb moisture, including from the air, through the portholes in his hands. He can also launch pressurized water blasts from these same holes. In Too Hot to Handle, Water Hazard's water is aqua green in color, but later in Hero Time, it is blue.
Alien of the Month claims that Water Hazard blasts hot water.
In Cosmic Destruction, Water Hazard could generate a water tornado, briefly levitating while launching water blasts, and he wielded a water-whip to destroy enemies.
In the online games Ben 10: Game Creator and Omniverse Collection, Water Hazard shoots blobs of water in an upward tilted angle, instead of just spraying it. He is also able to create a bubble shield to protect himself from lasers.
As seen in Rook Tales, Water Hazard can jump exceptionally high.
Although Water Hazard's armored exoskeleton allows him to feel little to no physical pain, he seems to be vulnerable to energy attacks.
- In Fame, Water Hazard's DNA was sampled and put in the Codon Stream by sampling Bivalvan's DNA.
- Water Hazard first appeared in Too Hot to Handle. Water Hazard pretended to be Bivalvan to convince P'andor to go home, but failed and was defeated by P'andor.
- In Hero Time, Water Hazard defeated Overlord by blasting his super-heated armor with water making it brittle and absorbing the water back into himself sucking away the energy.
- In Revenge of the Swarm, Water Hazard confronted some Victor clones, but they escaped.
- In Double or Nothing, Water Hazard defeated the Methanosian actor, Swamps.
- In Night of the Living Nightmare, Water Hazard was seen at the end of the episode confronting Albedo.
- In The More Things Change: Part 2, Wateer Hazard battled Buglizard with the help of Rook but failed.
- In Hot Stretch, Water Hazard was used to cool off Ester and her friends.
- In Tummy Trouble, Water Hazard was used to spray Attea off the Proto-TRUK.
- In The Frogs of War: Part 1, Water Hazard was used to battle the Incurseans.
- In Return to Forever, Water Hazard tried to break out of a force field, but was reverted by the Forever Knights' DNA scanner.
- In The Ultimate Heist, Water Hazard was used to stop Negative Goop from getting the Polymorphic Crystal.
- In For a Few Brains More, Water Hazard defeated Ultimate Panuncian.
- In Bengeance is Mine, Water Hazard fought off Sir Morton and the Forever Knights, but broke a pipe and eventually ruined Pakmar's shop.
- In Rook Tales, Water Hazard fought Kundo but was defeated.
- In A New Dawn, Water Hazard appeared for a short time when Ben was cycling through his aliens.
Ben 10: Ultimate Alien
- Too Hot to Handle (first appearance)
- Hero Time (accidental transformation, selected alien was Big Chill)
- Revenge of the Swarm
- Double or Nothing
- Night of the Living Nightmare (Albedo's dream; cameo)
Ben 10: Omniverse
- The More Things Change: Part 2 (first re-appearance; accidental transformation, intended alien was Humungousaur)
- Hot Stretch
- Tummy Trouble
- The Frogs of War: Part 1
- Return to Forever (cameo)
- The Ultimate Heist
- For a Few Brains More
- Bengeance is Mine
- Rook Tales
- A New Dawn (cameo)
- Ben 10 Ultimate Alien: Game Creator
- Ben 10 Omniverse: Game Creator
- Ben 10 Omniverse: Collection
Ben 10 Ultimate Alien: Cosmic Destruction
- Water Hazard is a playable alien in Cosmic Destruction.
Ben 10: Ultimate Alien
- Ben 10: Ultimate Alien 4 inch Alien Collection Water Hazard
- Ben 10: Ultimate Alien 10 cm DNA Alien Heroes Water Hazard
- Ben 10: Ultimate Alien # inch Mini Figure Water Hazard
- Ben 10: Ultimate Alien 4 inch Gold Water Hazard
- Ben 10: Ultimate Alien 4 inch Water Hazard with mini alien
- Ben 10: Ultimate Alien 4 inch Haywire Collection Water Hazard
- Ben 10: Ultimate Alien 4 inch Deluxe Water Hazard
- Ben 10: Ultimate Alien Ben to Water Hazard and Spidermonkey to Ultimate Spidermonkey
- Ben 10: Ultimate Alien Classic Diamondhead, Water Hazard, Humungousaur Defender, Big Chill
Ben 10: Omniverse
- 4" Water Hazard
Naming and Translations
|Bulgarian||Водовъртеж||From водовъртеж, whirlpool|
|Chinese||水霸天||From 水 (Shǔi), water and 霸天 (Bà Tiān), overlord|
|Croatian||Vodeni||From voda, water; the name is an adjective which means "water-based"|
|French||Hydro-Jet||From hydro, prefix linked to water and jet|
|German||Wasserschock||From wasser, water, and schock, shock|
|Greek||Επικίνδυνα Νερά||From επικίνδυνος, hazard, and νερό, water|
|Hungarian||Vizigót||From Vizigót, Visigoth, and víz, water|
|Italian||Sparacqua||From spare, launch, and acqua, water|
|Polish||Wodny Nahaj||From wodny, water and nahaj, whip|
|Portuguese (BR)||Ameaça Aquática||From ameaça, menace, and aquática, aquatic|
|Romanian||Bici de Apa||From bici de apa, water whip|
|Russian||Водяная сила||From водяная сила, water strength|
|Spanish (HA)||Amenaza Acuática||From amenaza, menace and acuática, aquatic|
|Swedish||Vattenfaran||From vatten, water and faran, hazard|
|Turkish||Su Kamçısı||From Su, water and Kamçı, whip|
- Each of Ben's Andromeda alien forms control a basic element. As the name suggests, this form commands water.
- Water Hazard is the first Andromeda alien form Ben scanned and used.
- Water Hazard is the Alien Of The Month in January 2012.
- In the mobile game, Ben 10 Ultimate Alien: Xenodrome, his name was misspelled "Waterhazard".
- In Cosmic Destruction, if one looks closely enough, it can be seen that his mouth can open, as he opens it while firing his water cannon, and it opens and shuts when he is idle.