The death of Paul Walker left some mighty big shoes to fill in the Fast & Furious franchise. Some film series might have packed it in after the death of one of its biggest stars, but the Fast-verse is a little bit different than your average blockbuster property. For one thing, characters have been coming and going from its ever-expanding storyline from the very beginning. For another, Furious 7 was the biggest movie in the series to date by a very large margin; it’s worldwide box office total was almost double that of Fast & Furious 6. So these movies aren’t going anywhere. But they do need some new stars.