Disciples of Saxon

The Disciples of Saxon was a sinister cult that worshipped Harold Saxon. The cult was likely formed during the time that the Master (as Harold Saxon) served as the British Prime Minister. (DW: The Sound of Drums / Last of the Time Lords) Eventually, the cult went on to resurrect the Master with the Potion of Life (DW: The End of Time). He had prepared them to do so, should he be killed. When his funeral fire had been burnt down, one of their number collected the Master's ring. (DW: Last of the Time Lords)

The resurrection went wrong, however, because Lucy Saxon's family had calculated an opposing potion to the Potion of Life, in preparation for the Master's predicted return. Lucy used it and sacrificed herself, blowing up Broadfell Prison. She, along with all the disciples, were killed, although the Master managed to survive. (DW: The End of Time)