Krasi

The Krasi are a warlike alien race.

Although they are equally as ruthless as other alien races, they want to appear benevolent and they go to a lot of trouble of presenting a good public image.

In a new timeline created by Josiah W. Dogboelter's Quantum possibility Engine, the Krasi tried to take over the solar system which had become a closed system thanks to Dogbolter's temporal manipulations. Though they tried to portray themselves as liberators, the Krasi were forced to retreat when the Seventh Doctor called them out. (AUDIO: The Quantum Possibility Engine)