http://whatculture.com/tv/arrow-season-4-10-characters-who-need-to-die.php

You have failed this city.

9 - Roy Harper - I don't agree with this one; I want them to leave the door open for him to return at some point.

8 - Count Vertigo - don't care, sure go ahead and kill him off, he's only a minor villain anyways

7 - Nyssa Al Ghul - I actually think that if Malcom Merlyn is going to be in any future storylines (which he will) than she has to be in the mix too, so killing her off any time in the near future would be stupid.

6 - Malcolm Merlyn - I actually like John Barrowman as an actor - although much more so in Torchwood and Doctor Who as Captain Jack Harkness - but I am pretty tired of the Malcolm Merlyn character and wish they would just give him a rest for awhile, maybe bring him back as a villain after a season or two.

5 - Lyla Michaels - I disagree with this one as well; I would actually like to see them let Diggle retire peacefully and become a house-husband, letting Lyla take over the dangerous stuff, just not necessarily on the show.

4 - Thea Queen - No. No. NO. You can't take our Speedy away.

3 - Laurel Lance - I am right there with the rest of the online fanbase in not particularly liking this character, but with Sarah gone we are stuck with her. They have completely broken this character and I don't see a way to fix it, but we can't NOT have the Black Canary - unless they find a way to bring back Sarah or get a new third character to be Black Canary, I don't see how they can kill her off.

2 - Detective Lance - I really like the actor that plays this character but at this point we've seen enough of him to last a lifetime, so I don't care if he lives or dies.

1 - Felicity Smoak - Nope. Most vehemently no way this should happen - best character on the entire show. I don't care if Felicity and Oliver are together, or Felicity and Ray Palmer, or Felicity and her laptop - the only thing that is important is that she is Felicity and they give her something interesting to do.

9 - Roy Harper - Now what would be the point of this? He was one of the most underused characters who tended to not get lost in relationship drama. I'd prefer he went off to live a good life.

8 - Count Vertigo - I hope they "kill" him off like they've done multiple times already. It's kind of a running gag at this point.

7 - Nyssa Al Ghul - She doesn't really add anything to the show, but if Merlyn is going to return, it makes sense that she would be with them.

6 - Malcolm Merlyn - I hope we don't see him again for a long time, honestly. There was WAY too much Malcolm in this season and he didn't do a whole lot.

5 - Lyla Michaels - No. Diggle's family man status is very important to his character. It's a crucial side to him. She's also good support.

4 - Thea Queen - Don't you think Oliver has lost enough family members? I'd like her to have a chance to finally stand on her own.

3 - Laurel Lance - Not going to happen. She just needs to be more competent and less of a know-it-all. But I've never hated this character.

2 - Detective Lance - If they keep making him an antagonist to Ollie, I want him gone. That horse has been beaten beyond death. If he goes back to being an asset, then keep him.

1 - Felicity Smoak - Look, I know people don't like what was done with her in season 3, but remember that in season 1 and 2 she was great. Stop making her the focus of love triangles and put her back on the team proper and there are no issues.