Grigory Nikulin
From Tardis Wiki, the free Doctor Who reference
Grigory Nikulin was a patriotic Russian who inquired about the First Doctor and took him away thinking he was a medical Doctor, and blackmailed him to accompanying him. Yakov Yurovsky asked him to assassinate the Doctor and his friends. He got confused when he saw The Doctor's TARDIS disappeared infront of him. (AUDIO: Last of the Romanovs)