|1999 - 2011|
|Debut:||Chapter 39; Episode 33 (1999); Episode 22 (2011)|
|Hair Color:||White (1999); Dark Brown (2011)|
|Relative(s):||Zoldyck Family (owners)|
Mike is the huge, highly trained guard dog of the Zoldycks. Like a machine, whenever Mike sees a stranger he will memorize their appearance and scent. Other than that, he does not care about anything. For 10 years, he has been acting on his master's order, killing everyone who intrudes into the Zodycks' property. He only takes orders from the Zoldycks. Thus, even though Mike sees Zebro, an old groundskeeper of the Zoldyck family, almost everyday, if he enters the estate through any way other than the Testing Gate, Mike will kill him without hesitation.