Carl's presence in The Walking Dead comics is quite significant. He lasts for a substantial period, but his fate is ultimately determined by the complex and evolving storylines.
Negan has a significant presence throughout much of The Walking Dead comics. His survival depends on various plot developments and character interactions.
Another possibility is Draco Malfoy. He was always in a difficult position, being from a Death Eater family but having some doubts. In this fanfiction, he could be in a situation where he's made some bad choices and now feels like he's a 'dead man walking' as he tries to find a way to make amends or escape the consequences. He has to walk a very thin line between life and death, both literally and figuratively in the wizarding world.