Vostok is a character and antagonist from the PKNA comic book series.
Vostok is a scientist who works for The Organization. He dislikes Newton due to his lack of tact and diplomacy, and often sees himself forced to work with the droid, who dislikes him equally.
In issue #43, Vostok was arrested by the Time Police along with the senior leaders of the Organization. He's presumably placed in a cronocapsule in the prison Time Ø to serve his sentence for numerous crimes.