Leonard de Vries
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Leonard de Vries was the leader of the religion of the Cailleach.
De Vries and Martha were in the group, but after Cessair of Diplos wanted the whole area around her dead, she ordered her Ogri to kill him. The Fourth Doctor and Amelia Rumford found his body, at that time when K9 traced an Ogri, ready to kill. (TV: The Stones of Blood)
