Morgana

Morgana was the fortune teller of the Psychic Circus. She also guarded the entrance of the circus tent. She tried to stop the Seventh Doctor and Ace from entering. She knew they would be in great danger, but when the Chief Clown appeared, she didn't dare to stop them. She was conflicted about sending people to their death performing for the Gods of Ragnarok. She tried to explain this to the Ringmaster. However, she did not hesitate to send the Whizz Kid into the arena, presumably because he had annoyed her.

The Chief Clown forced the Ringmaster and her into two large wicker baskets. They both disappeared. (DW: The Greatest Show in the Galaxy)