Who is Nymphadora Tonks?

Nymphadora Tonks was an auror for the Ministry of Magic. She was also a metamorphmagus, meaning she could change her appearance at will. She would sometimes play at the table by giving herself a pig nose. Tonks was the cousin to Harry Potter's godfather, Sirius Black. Later in the series, she married Remus Lupin. They had a son together, Teddy, in which they made Harry Potter the godfafther. Tonks died, along with Remus, at the Final Battle of Hogwarts.