They dont get much more shocking than killing off the titular character of a show well, forgetting the fact that the series killed off Oliver during last seasons mid-season finale only to see him miraculously brought back from the brink after his first battle with Ras al Ghul. But yeah, killing off a shows main character is serious business, and it was a huge shock to see Ollie bite the bullet during Season 4s Arrow portion of the crossover with The Flash. With the Emerald Archer and the Scarlet Speedster doing their best to put a stop to immortal, time-travelling rogue Vandal Savage, their efforts are futile and Oliver knows it. Sensing the end is near, he orders Barry to save himself. It was a mark of a wily veteran knowing that this was the end, and thus it was as we saw Oliver Queen essentially vaporised along with Felicity, Thea, Diggle, Laurel, Cisco, Caitlin and anybody else that happened to be in or around Central City. Of course, the fact that all of this was retconned thanks to Barry travelling back in time softened the blow a little, but at the time this happened it was a huge, huge shocker that nobody saw coming. Agree with this most shocking moments? Have some shockers of your own to look back on? Let us know in the comments.