Way back in Season 1 (feels like forever ago, right?), there was a scene with Rick in Atlanta where he is overwhelmed by hordes of walkers. The walkers take down Rick’s horse, forcing Rick to hold up inside a military tank. After hearing suggestions from a strange man on the tank’s radio (which is the introduction of Glenn), Rick grabs a grenade from a dead soldier and a metal pipe and makes a run for it, killing walkers left and right. He finally makes it to the man that was on the radio, Glenn. What makes this scene so incredible was the fact that Rick got out of such a dire situation in which he was surrounded by walkers via the help of a complete stranger—a stranger with whom he would share a lot of other dire situations with in the near future. This is also probably the best look at Glenn’s humanity, as he decides to help Rick, the complete stranger, while putting himself in harm’s way.

Lori

“The Killer Within” Season 3 Episode 4

We all knew that Lori wasn’t going to have an easy pregnancy (you know, with the whole zombie apocalypse going on around her), but not a single viewer expected her death to happen, especially in the fashion that did it. There are so many different things happening during this scene. For one, Maggie has to cut Lori open in order to save the baby, Lori has to say goodbye to her only son, and then Carl has to make sure his mother doesn’t turn into a walker. As if Lori’s goodbye to her son wasn’t heart-wrenching enough, audiences were stunned when they heard the gunshot from Carl; a gunshot that resonates with fans of the show even months later. To see a boy as young as Carl have to shoot his own mother so that she doesn’t turn into a walker was tough, but it was even tougher to watch as Carl quickly walked out of the room, not acknowledging his emotions.