Douwe Bob Posthuma is a Half-blood wizard who worked as professor at Hogwarts School of Witchcraft and Wizardry. He is a former Gryffindor student at his time at Hogwarts. He is also a Dutch singe, producer, and model.
Career at Hogwarts
At some point after his graduation, Posthuma returned to Hogwarts to teach in 1991.
Personality and traits