who plays the weasley twins in harry potter
James and Oliver Phelps James Andrew Eric Phelps and Oliver Martyn John Phelps (born 25 February 1986) are identical twin British actors, best known for playing identical twins, Fred and George Weasley in the Harry Potter film series.
Mark Williams (actor) Mark Williams (born 22 August 1959) is an English actor, screenwriter and presenter. He is best known as Arthur Weasley in the Harry Potter films, and as one of the stars of the popular BBC sketch show The Fast Show. He also played Brian Williams (father of Rory Williams) in the BBC series Doctor Who, and Olaf Petersen in Red Dwarf. More recently he has appeared as the title character in the BBC series Father Brown.