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Ash's Muk

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Ash's Muk
サトシのベトベトン Satoshi's Betbeton
Poké Ball
Ash Muk.png
Muk smothering Ash
Debuts in Sparks Fly for Magnemite
Caught at Gringey City
Gender Unknown
Ability Unknown
Current location At Professor Oak's Laboratory
This Pokémon has not evolved.
Voice actor Japanese English
As Muk Unshō Ishizuka Michael Haigney

Ash's Muk (Japanese: サトシのベトベトン Satoshi's Betbeton) was the ninth Pokémon caught by Ash during his travels through Kanto. Its Japanese voice actor is Unshō Ishizuka and its English voice actor is Michael Haigney.



Ash caught Muk in the episode Sparks Fly for Magnemite. Ash and his friends were traveling through Gringey City, which was in the midst of a power failure. The local power plant was being overrun by the mysterious Template:Type2 Pokémon Grimer. After the swarm was taken down, the Grimer's leader, a Muk, came and challenged the Trainers. Ash weakened it and captured the Muk. It was then immediately sent to Oak's lab because its stench was so rancid that it could seep through the Poké Ball. However, Muk's horrid smell seemed to have disappeared in later episodes as neither Ash, nor anyone around him, was affected by it.

While at the lab, Muk grew an attachment to Professor Oak and as a recurring gag, it would always smother the Professor whenever Ash would make a call to the lab. So far, Muk has only been in two major battles since his capture in which he was selected as a surprise selection in the Indigo Plateau Conference. It defeated Jeanette Fisher's high-level Bellsprout using Body Slam and won the match for Ash.

Orange League

Muk was briefly called in The Mystery Menace, where he used Muk to help him find the giant Bulbasaur in a sewer.


Muk also battled Gary's Blastoise and Scizor in the Silver Conference; however, it was knocked out without a single win.

Muk also made a brief appearance in The Greatest - Everyday! Japanese opening, along with the rest of Ash's Pokémon.


When Ash returned from Hoenn, Muk showed a lot of affection for Professor Birch.


Muk reappeared in DP182, in Prof. Oak's lab, and then it was transfered to Ash to train. Muk is set to compete in the Sinnoh League, though the match it will compete in is still unknown.

Moves used

Using Sludge Bomb Move First Used In
Body Slam The Fourth Round Rumble
Poison Gas A Tent Situation
Sludge Bomb Can't Beat the Heat!
An x shows that the move cannot be legitimately learned by this Pokémon in the games.
  Moves used recently are in bold unless all moves all fit this case.


  • Muk is the only pure Template:Type2 Pokémon Ash or any of his friends have owned.
  • Muk is one of a few Pokémon that was caught by Ash when it was in its second evolutionary form. The other Pokémon that he caught at this evolutionary level are Pidgeotto, Noctowl, and Primeape (five if Seaking is counted).
  • It is also Ash's only Pokémon in the Indeterminate egg group.
  • Like Squirtle before it and Taillow after it, Muk was the leader of a group of Pokémon that caused trouble before being captured by Ash. Unlike Squirtle and Taillow, the group it led was comprised of its previous evolution.

Related articles

For more information on this Pokémon's species, see Muk.

Project Anime logo.png This article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.