Back in October Ty Olsson was amongst the list of new cast members announced for Breaking Dawn - speculation was that he could play the part of J Jenks - however, it turns out he's going to be Phil Dwyer, i.e. Bella's step-dad!
(No, he's not the same guy from Twilight - that was Matt Bushell who played Renee's husband in the opening scenes.)
So this potentially leaves Wendell Pierce to play J? Hmmm!
*Sorry for my bad - how could my devotion sway from Team Charlie :)