|Powers and abilities|
|Abilities|| Enhanced Strength|
|Voice Actor||Dee Bradley Baker|
|First Appearance||Prisoner Number 775 Is Missing|
Ultimate Wildmutt is the evolved form of Wildmutt.
Ultimate Wildmutt is significantly larger and more muscular than Wildmutt. His fur is a maroon-red color. He has four huge gray/white spikes running down his back that overlap. These spikes start out as a shark-like fin at the head and rises almost into an arc over the back, tapering near the rump. He also has a long tail whose tip has a horn, resembling a scorpion stinger. His lips are black, like Wildmutt in the original series.
Ultimate Wildmutt wears the evolved Ultimatrix symbol on his chest.
Powers and Abilities
Ultimate Wildmutt has Wildmutt's incredible sense of smell and is physically stronger than him. He also, unlike Wildmutt, has the ability to speak.
Ultimate Wildmutt has more agility than Wildmutt and in addition to his enhanced smell, he has enhanced hearing as well as a sharp tail, claws and teeth used for close range combat.
- Ultimate Wildmutt first appears in Prisoner Number 775 Is Missing. Ultimate Wildmutt defeated Prisoner 775.
- In The Ultimate Enemy: Part 2, Ultimate Wildmutt defeated the Esoterica.
Ben 10: Ultimate Alien
Naming and Translations
|Chinese||终极超能兽||From 终极 (Zhōng Jí), ultimate, 超能 (Chāo Néng), super, and 兽 (Shòu), beast|
|Greek||Απόλυτο Αγριόσκυλο||From απόλυτος, ultimate, and αγριόσκυλο, wildmutt|
|Portuguese (Br)||Besta Suprema||From besta, beast, and supremo, supreme|
|Romanian||Sălbaticul X||From sălbatic, wild|
|Spanish (HA)||Bestia Suprema||From bestia, beast, and suprema, supreme|
|Spanish (Spain)||Ultimate Feral||From ultimate and feral, wild|
|Turkish||Ultimat Yaban Köpek||From ultimat yaban köpek, wild dog|
- Ultimate Wildmutt didn't appear in The Ultimate Sacrifice, although synopsis said that all Ultimate Forms want freedom.