On the planet of the Cheetah People Karra was one of the Cheetah People who was invloved in a flight with the humans that had been transported. After being knocked off her horse by Ace she tried to make her way to a small lake, and collapsed on the edge. Seeing this Ace pulled her out of the water and helped her recover.
A connection was made between Karra and Ace as the planet started to influence Ace. At one point Ace even when hunting with Karra. With Karra's influence running through her Ace was able to teleport the Doctor and the remaning humans back to Earth. When Ace was attacked on Earth Karra transported back to help. She was stabbed by the Master and turned back into a human before dying.
- Lisa Bowerman