Grigori Rasputin

Grigory Efimovich Rasputin (CC: The Wanderer) was a controversial Russian mystic with influence in the later days of Russia's Romanov dynasty. He was assassinated by Prince Felix Yusupov, along with his co-conspirators Grand Duke Dmitri Pavlovich and Vladimir Purishkevich. (PDA: The Wages of Sin)

In 1903, Ian Chesterton dealt with the eccentric Grigory, who was then a pilgrim in Siberia in his early 30s. Rasputin, revealed to be the Mad Monk of historical infamy, gained knowledge of future events that included the Tenth Planet, World War II, vampires, werewolves and detailed information about the Doctor. The increasingly insane and sickly Grigory desired to use his knowledge to prevent disasters such as the Holocaust. The only way to save him was to take him into the Vortex and use the telepathic circuits within the TARDIS to remove Rasputin's memory of recent and future events. Rasputin was left asleep in the Summer Garden in St. Petersburg. (CC: The Wanderer)

When meeting Rasputin in St. Petersburg, Russia in 1916, the Third Doctor, Jo Grant, and Liz Shaw realised that the legends about him were just that and he was not the evil manipulator history books had made him out to be. Liz reluctantly passed on Prince Felix Yusupov's invitation to dinner to Rasputin, knowing that he would be killed, but also realising that history must run its proper course. Jo posed as a maid in the kitchens at Yusupov's Moika Palace, where she disposed of poisoned cakes and wine intended for Rasputin and replaced them with untainted ones, unknowingly contributing to one of the last and most notorious chapters of his legend. When Rasputin devoured the cakes and remained unharmed, Yusupov became convinced Rasputin was possessed by the Devil and shot him in the back as he knelt in prayer. His accomplice Vladimir Purishkevich finished the job, shooting Rasputin repeatedly until he died and then beating his corpse in a fit of rage. (PDA: The Wages of Sin)

The Teselecta once took the form of Rasputin, but with a green skin colour. (DW: Let's Kill Hitler)