- Voice actor: Michael Haigney (both English and Japanese)
Wooper is a mostly blue amphibious Pokémon that bears a resemblance to a real-life salamander known as an axolotl. Wooper stands upright on its small, round feet, and has a large, thick tail. Wooper also has purple-colored, branching gills coming out of the sides of its head, and what look like dark blue, curved gill-like markings on its torso. Wooper's head is large compared to its body, its mouth is wide and its eyes are small, round, and black in coloration. Its height is 1'04" and weight is 18.7 lbs.
Female Wooper have smaller gills on the sides of their heads.
The film covering Wooper's body when it walks on land is poisonous, and can cause a shooting pain if touched barehanded.
Wooper tend to be dull-witted Pokémon as implied in Trouble in Big Town. They tend to be oblivious to their surroundings. They also share this trait with their evolution Quagsire. Wooper lives in cold water most of the time, but it will on occasion leave the water to search for food when the temperature cools in the evening. While walking on land, it coats its body with a slimy, toxic film that keeps its skin from dehydrating and insulates itself against the cold. In the water, Wooper partially buries itself in the mud at the bottom to sleep.
Wooper live in cold, clean water, but will occasionally travel over the land in evening in search of food.
- Main article: Pokémon food
A gang of Wooper appeared in Pikachu & Pichu.
A Wooper is one of the best friends of the Pichu Brothers. It has appeared in Pikachu and Pichu, Trouble in Big Town, Of Meowth and Pokémon, Big Meowth, Little Dreams, Pichu Bros. in Party Panic and made a cameo appearance in Giratina and the Sky Warrior.
A Wooper appeared on a poster in Imitation Confrontation.
Five Wooper were among the inhabitants of an oasis just for Pokémon in Got Miltank?.
Multiple Wooper appeared in Pokémon Heroes.
A Wooper appeared in Abandon Ship!.
A couple of Wooper were seen in the greenhouse in Sweet Baby James.
Multiple Wooper were owned by a family of traveling circus performers in Pokémon Ranger and the Temple of the Sea.
A Wooper appeared in the opening of Lucario and the Mystery of Mew.
Several Wooper appeared in Pokémon Ranger and the Temple of the Sea.
A Wooper also made an appearance in Like It Or Lup It!.
A Wooper appeared in Camping It Up!.
A Wooper appeared in Up Close and Personable!.
A Wooper also appeared in A Lean, Mean, Team Rocket Machine.
Three Wooper appeared in Doc Brock!.
A Wooper also appeared in To Thine Own Pokémon Be True!.
A Wooper also appeared in Bagged Then Tagged!.
Wooper appeared in Zoroark: Master of Illusions.
A Wooper appeared in BW127.
Wooper, Water Fish Pokémon. The pre-evolved form of Quagsire. Though they prefer to live in cold water, these appealing Pokémon forage for food on land. They are kept warm by a layer of insulating body fluid.