Koslov is Mr. Big's most trusted henchman and, thus, ranks very high in his crime syndicate as a made man.  He serves not only as a bodyguard for the crime boss, but also carries him around in his well-appointed, high-backed leather office chair. 

Koslov never speaks.  He doesn't need to.  His sheer size (including his height as well as his bulk), and his ability to cast a very intimidating, grimacing stare, are more than enough to convey his power and his influence.  He shows very little emotion when in the presence of Mr. Big (except when invoking divine protection by making the sign of the cross whenever Mr. Big makes a monumental decision).

Like many residents of Zootopia, Koslov loves espresso drinks, and can often be seen with a cup from the local coffee shop in hand.

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Full Name: Koslov

Species: Polar Bear

Design Inspiration/Influences: None

Appearance: Tall and burly, with blue eyes and heavy eyebrows.  Wears a black suit, but prefers to wear mock turtleneck shirts underneath (usually black or blue).  Also wears a gold chain (with a medallion) around his neck, and a gold ring on his right index finger with a red stone (possibly a garnet or ruby).

Personality: Extremely dour and taciturn, and unquestioningly loyal to Mr. Big.  Has a very intimidating stare, but occasionally can show a bit of emotion, and appears to be somewhat religious.