Over the course of eight movies, the Fast & Furious franchise has had a slew of different villains. Some of them have been less then spectacular, while others have been more than terrifying, and a true joy to watch antagonize Vin Diesel (shout out Charlize Theron). According to Dwayne " The Rock" Johnson, the greatest of these villains is yet to come, as his upcoming Hobbs and Shaw spinoff features the "most diabolical" bad guy the franchise has ever seen.