(Lord Voldemort, Voldemort, Lord) Powerful Dark Wizard whom most refer to as "You-know-who". He killed Harry's parents and left a thunder-bolt scar on Harry's forehead in a failed attempt to kill him as a baby.

Origin:

Voldemort - A combination of French terms: "vol" meaning "flight", "de" meaning "of" and "mort" meaning "death, killing" in French and Latin. "Vol de mort" can also mean "Theft by death," implying Voldemort "stole" Harry's family from him by killing his parents.