Claire Summerfield (Dalek duplicate)

 was created on Adolin to help Bernice Summerfield. She didn't explore the cathedral with Benny. According to Steven Day, she only turned up when Benny arrived on the moon. She theorised with Benny that the Dalek wanted something from Benny. She then gave Benny a message that Ace left for her. She then allowed herself to die to get Benny to Skaro. (AUDIO: Good Night, Sweet Ladies)