Christopher Heyerdahl spoke to River Online, not too long ago about the dynamics of the Volturi and about his character, Marcus. It’s pretty enlightening and funny at the same time. This year has been a big year for Christopher Heyerdahl. But his most memorable role is undoubtedly the heartbroken Marcus, a member of the Volturi, in the Twilight saga. “In all honesty, I haven’t actually been re…