Perhaps he was doing the bidding of You Know Who.

Jamie Waylett, the actor who played Draco Malfoy's tubby sidekick Vincent Crabbe in six Harry Potter films, is facing a slew of charges—including being in possession of a petrol bomb—stemming from his alleged involvement in this summer's London riots.

Police also discovered 15 cannabis plants in his bedroom—a big no-no considering the thesp was busted for growing marijuana in 2009.

Looks like someone was taking his Slytherin part too seriously.