Manjimutt is a dog with a human face. He has chocolate brown fur, tan skin, a green ghost-like swirl atop his head and another as a tail, and small poodle paws with pink paw pads. He wears thick, black rimmed glasses. He has a dull red stripe on his face and his left eye is partially shut.
In his Onechanside Form, his fur turns yellow and his ears turn into locks. He also has a tiny black spot on his head and gains a moustache and lipstick.
Manjimutt is shown to lament his afterlife, due to the fact that he is still treated as a normal human and not as a normal dog like he expected. Initially, he has a fair grade of low self-esteem, even after being fired from his work when he was alive and resorts to spending his life as a Yo-kai in the street bar which he considers his new home.
Though a hard-worker, Manjimutt is an extremely incompetent planner. His attempts at breaking into photography and pottery both failed because he attempted to hijack those jobs from other people; sneaking into a photography studio and pottery shop, seemingly intent on jump-starting his career only to be reminded by police that he's breaking and entering. He's also a pervert, with his lust for women being his primary drive and the reason for his hasty decision making.
Manjimutt's ineptitude is even further cemented by the fact that he completely forgot about his current status as a Yo-kai. He's even unable to perform the basic Yo-kai ability of being invisible to humans, and multiple times he fears being killed by an incident, despite forgetting that he's already dead.
Beyond his incompetence, Manjimutt frequently finds himself at the mercy of his canine instincts; being unable to stop himself from digging holes in gardens, urinating on telephone poles, howling at the moon, and stealing food from plates.
During his time in prison, Manjimutt's sanity begins to degrade as he begins to suffer from delusions; namely that a teddy bear he got for Christmas can walk and talk, and that a group of abusive inmates are his good friends.
Due to the circumstances of Manjimutt's death, he can be seen by people without the need of a Yo-kai Watch. As such he can pass as a normal human, albeit a weird looking one.
Manjimutt can avoid some Yo-kai's powers, but this usually makes him the butt of some jokes. For example, Wazzat tried to steal Manjimutt's memories when Manjimutt was summoned on accident instead of Jibanyan, and it didn't work because Manjimutt's memories were awful. Another example is how Shmoopie can't make Manjimutt smile cutely because he's widely considered to be ugly. A third example was in EP046 where Supoor Hero tried to inspirit Manjimutt but failed because Manjimutt was already, in Supoor Hero's own terms "at the maximum level of patheticness"; however, Manjimutt took this as an offence.
In the Yo-kai Watch manga, Manjimutt is capable of transforming others into human-faced dogs like himself by biting them. Those who have been transformed into human-faced dogs possess this ability as well. Whether he has this ability in the anime as well is unknown, though it is mentioned by Whisper in EP003.
Manjimutt appears in the Secret Byway and in trash heaps in the Tucked Away Lot (Blossom Heights). He also appears in the 1st and 2nd Circles of Infinite Inferno.
"Manjimutt" is a portmanteau of man and mutt. It is also a play on the words mangy mutt.
In Spanish, "Cantonio" is a combination of caniche (poodle) and the spanish name Antonio (Anthony).
In Arabic, "نباح" is translated roughly to barking (the sound dogs make).
In Portuguese (Brazil), "Sarnento" translates as mangy.
In Korean, "인면견" is translates as "human-faced dog", just like his Japanese name.
In German, "Möter" is a combination of "Mann" (man) and a derogatory word for a dog "Köter".*
In French, "Corniot" means an alloy of two breeds of dogs but misspelled (the correct spelling is "corniaud")
Manjimutt is based on the urban legend of the jinmenken (人面犬, "human-faced dog"), which is said to appear at night skulking around city streets or speeding along highways. Despite its unsettling appearance, it is not a dangerous creature as much as simply brooding and miserable, and will bark "Leave me alone!" when approached. Some speculate it is either an escaped test subject, or a reincarnated accident victim. Others even theorize witnesses mistook a Japanese macaque for a dog-like creature.
He is voiced by Paul Greenberg in the English dub.
Although in the anime he can be seen by people without a Yo-kai Watch, he must be scanned by the watch light in order to be seen in the games.
In the orginal Japanese version, Manjimutt has a recurring catchphrase which is "Chikusho!" (チクショー!) which would essentially equate to "Goddammit!". It initially wasn't included in the English version, but it would later be as "Doggone it!" for later English-dubbed Yo-kai Watch anime episodes and games.