The Minister

The Minister was a Time Lord who went by the name Felicity Morgan when residing on Samael. (AUDIO: The Same Face)

History
The Minister chose her title upon leaving Gallifrey as a renegade. She previously worked for the Celestial Intervention Agency and had survived nine assassination attempts on her life, regenerating each time, prior to arriving on Samael.

Behind the Scenes
The Minister may possibly be a reference to the similarly named incarnation that appeared in Death Comes to Time and would later feature as the title character in the Minister of Chance series.