For Jamie Campbell Bower, there seems to be no regret about having to decline the chance to be a leading man in a major film franchise. In fact, things may have worked out for the best. While Robert Pattinson worked hard to give Edward Cullen a brooding persona (he almost got fired for being too serious), Campbell Bower was able to have fun and enjoy plenty of freedom while bringing Caius to life.

In an interview with MTV News, he reflected on how, prior to filming, he and director Chris Weitz brainstormed ideas for the character's backstory. For example, Campbell Bower suggested that Caius is an angry individual because he's the only Volturi leader without a special power. 

"And then, once we got on set, he [Weitz] was just like, 'Go for it.' We'd do a couple of takes of the same thing, and then we'd change it up and I'd do something crazy," said Campbell Bower. He added, "We'd do different accents, different styles. There would be one that would be very introverted, and then there would be another one that would be completely theatrical. It was good fun."