Vodka is mostly seen by Gin's side, and often calls him Aniki (兄貴; Literally meaning "Elder Brother"). Vodka is handles most of the research and informations such as setting up meetings and giving informations to other members mostly to Gin. Vodka is often seen using some transport. Vodka speaks and acts like a typical mafia or yakuza, known is also that he can be a ruthless killer just like Gin. Unfortunately unlike Gin, Vodka is more easy-going which he can be easily trapped in one of Conan's traps.
Vodka has a muscular body, a wide chin making him look more like a member of the mafia, yakuza or simply a thug. Vodka wears a black fedora with a red stripe around it, also he wears black clothes but his shirt is red. Vodka is mostly seen wearing black glasses.
- Vodka's English name "Kaspar" comes from one of the three magi's.
- At the website eBookJapan held a character popularity poll from April 12, 2011 to May 12, 2011, Vodka placed 25th in the poll with 10 votes out of the 5,883.