Dr Randulf Harlow is a retired vampire slayer in the Blue Moon Inn in Varrock. If a player has started Vampire Slayer, they must buy him a beer in order to convince him to teach them how to kill Count Draynor. Dr Harlow will then give players a stake. After completing the quest, Dr Harlow will go back to what he was saying before ("Buy me a beer pleash").
- His new look resembles Abraham Van Helsing, the protagonist and vampire hunter from Bram Stoker's Dracula. It is also likely that he was based off the character originally.
- He could also be based on psychologist Harry Harlow, who was known to be an alcoholic.
- At the mention of "How to kill a vampire", Dr. Harlow resumes a normal, sober state. His speech isn't slurred, and it seems the only thing that could snap him out of his inebriated state.
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