|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 maroon-red color. He has four huge gray/white spikes running down its back that overlap. These spikes start out as a shark-like fin at the head and rising 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 sting. His lips are black, like Wildmutt in the original series.
Ultimate Wildmutt wears the evolved Ultimatrix symbol on his chest.
Powers and AbilitiesEdit
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 an Esoterica.
Ben 10: Ultimate AlienEdit
Naming and TranslationsEdit
|Portuguese (Brazil)||Besta Supremo||From besta, beast and supremo, supreme|
|Spanish (Spain)||Ultimate Feral||From ultimate and feral, wild|
|Spanish (Latin America)||Bestia Suprema||From bestia, beast and suprema, supreme|
- Ultimate Wildmutt's appearance is similar to a Fel Hound from World of Warcraft.
- Ultimate Wildmutt is one of Ben's aliens who is not in the Ultimate Alien intro; the others are Fasttrack, ChamAlien, Eatle, Jury Rigg, Shocksquatch, Clockwork and Ultimate Way Big, although this is due to their existence not being known until the second season.
- Ultimate Wildmutt is one of six aliens to have debuted as a toy before their television debut. The other five are Perk Upchuck, Eatle, Clockwork, Toepick and Astrodactyl.
- Ultimate Wildmutt did not appear in The Ultimate Sacrifice for unknown reasons.
- Ultimate Wildmutt was the last ultimate form used.