Ron Perlman ("Sons of Anarchy," "Hellboy") has joined the cast of the Harry Potter spin-off feature "Fantastic Beasts and Where to Find Them" at Warner Bros. Pictures. Eddie Redmayne is starring as Newt Scamander, the wizarding world’s preeminent magizoologist, in a story set seven decades before the 'Potter' books. Perlman will reportedly play a goblin in the film which author J.K.