Igor was once an assistant to the doctor Victor Frankenstein.
Igor was paid off by Dracula to betray Victor once Frankenstiens monster was complete. Igor revealed his treachery when the said monster was complete and abandoned the scientist when the monster escaped. Dracula promoted Igor to master of the Drewgey which is the basic slave labour of Dracula. Later in the course of events that led Van Helsing to be bitten by a werewolf and to seek a cure that only Dracula possess, Igor was unfortunately interrogated Carl and Anna Valerious and forced to lead them to the cure. However fortune smiled upon him and he took the opportunity to trap the pair in the room. He finally met his end when he was knocked off the ledge.