Wildmutt appears to be a big, orange dog with no eyes or tail. His teeth are very defined and stick out of his mouth. Wildmutt has no eyes, instead using his sense of smell and hearing in vision's place, which are aided by three gill-like nostrils located on each side of his neck. In the original series, Wildmutt wore a brace with the Omnitrix symbol on his left shoulder.
In Ultimate Alien, Wildmutt wore the Ultimatrix symbol on his chest and has orange lips rather than black, also he appeared with lighter fur, however he had black lips in the Ultimate Alien Intro. Ten year old Wildmutt in Ultimate Alien resembles his 10 year old version just with orange lips rather than black and the brace doesn't have any white in it. The Omnitrix symbol is also recoloured.
Powers and AbilitiesEdit
Wildmutt has a superb sense of smell. Due to him not having any eyes, his "vision" is made up of a dull 3D mapping of where his scents originate. He can track basically anything by their scent, regardless of they're even miles apart.
Wildmutt has superhuman strength, as he can rip off the roof of a vehicle with ease. He also has enhanced agility that allows him to run, jump, as well as climb at a superhuman rate.
Wildmutt can dig deep craters at a fast speed.
Wildmutt is quadruped, however he is capable of standing on his hind legs, and he can punch, somewhat awkwardly, using this.
Wildmutt can't talk. Instead, he communicates through a combination of barking and snarling. Due to this, it is extremely difficult for anyone to understand him.
When infected with a cold, Wildmutt's nostrils on his neck get blocked by mucus, making him unable to smell. His fur color seems to "decrease" from its vivid orange to a pale orange tone. Also, his lips and claws turn dark green.
Wildmutt's senses are very sensitive, making him vulnerable to anything that can overwhelm his senses such as a high pitched sound or a strong smell.