Vaber was a hothead who demanded immediate action against the Daleks. He challenged the group's commander, Taron, threatening him with a gun. They were interrupted and Vaber made peace with him. Vaber wanted to attack the Daleks by dropping explosives down a shaft. Taron refused, declaring it too dangerous. This prompted Vaber to brand him a coward and the two fought. They were eventually broken apart.
Later, while the others were at rest, he broke away and decided to take matters into his own hands. He headed for the Dalek base but was captured by Spiridons, who took him to the Daleks. He pretended to comply with their orders before making a break for freedom. The Daleks shot and killed him. (TV: Planet of the Daleks)