This is Tom Morvalo Riddle. He is Voldemort's real self. Ginny gave him power by using a diary that Ginny wrote in and Ginny gave him the power. He is just a memory. He is better than the real Voldemort but they are both really bad. Later in Harry's 6th year Harry learns so much more about Tom Riddle. He learned when Tom was a little boy he lived in an orphanage. Dumbledore came to visit him to tell him he is a wizard and will be attending to Hogwarts. Dumbledore asked him if he could do anything odd. Tom tells Dumbledore that he cam talk to snakes, and when he took those kids into a cave and did something to them and no one knows what happened to them, but the vanished. Riddle was in Slythrin and learned how to make Horcruxes. he made 7 in all.