John Sackville had a role in what mystery television series on Nickelodeon?
John Sackville (actor): John Sackville is an English actor, best known for his role as the villainous Robert Frobisher Smythe in the US TV series "House of Anubis." House of Anubis: House of Anubis is a mystery television series developed for Nickelodeon based on the Dutch-Belgian television series "Het Huis Anubis".
House of Anubis