Her real name is Vicky Cole. She's chill most times. Her outside life is very tame compared to her underground identity. She works at a local radio station, nobody in the underground knows what she does at her job, only that she just works there. She's usually outgoing and friendly. Her job for the underground is to assinate people. Death never really affected her as much so, Jak took that to his advantage.

Krill and Viper get along well. They have a sibling-like dynamic, though neither are related to each other. She was friends with Vixen and Crescent far before meeting Krill, however. They were friends in high school and had to rely on Jak for money.