From the first movie and throughout the entire saga, Harry had a couple of memorable housemates who he ran into from time to time in Gryffindor’s common house or around the school. One of them was Dean Thomas, played by Alfred Enoch. The actor is half-English and half-Brazilian. He became more popular over the years, especially after he was cast for one of the lead roles in the series How to Get Away With Murder and we were surprised to find out that he was Harry Potter’s friend from Gryffindor! He also appeared in Sherlock and in Troy: Fall of a City.