OK:I am the only person on this forum who doesn;t know who that is.
No. And I've seen the movies they are talking about.
That's Jasper "Harpo" Hale, a vampire from the twilight films. He's actually one of the characters in the novels who might in fact be interesting in a different book. He's an ex-confederate soldier who, along with other vampires, basically conquered a chunk of Texas to use the folks there as breeding stock. It ended badly. He is, of course, mostly ignored by Meyer to instead follow Bella around.
The actor is Monroe Jackson Rathbone V, who was also in The Last Airbender and has recently been in a web series called Aim High, about a teenaged spy. He also has a son, Monroe Jackson Rathbone VI.