5. Victor - Throat Slashed
Of course, taking Gus's traumatic backstory into account, his past was always going to have an effect on him, and he reveals his sadistic side later in season four in the episode 'Box Cutter'. Gus had planned to have Walt killed following his hit and run on the rival gang, though Walt and Jesse got one over on him by murdering Gale Boetticher, the only other man beside Heisenberg who knows how to cook blue meth. This gives Walt and Jesse a stay of execution after being rounded up by Mike and henchman Victor, before an irate Gus shows up at the lab, and, without saying a word, changes into a clean-up suit, grabs Victor and slowly slits his throat with a box cutter in front of everybody.