19 of 25
Dave (Michael Raymond James, pictured) and Tony (Aaron Munoz)
Death episode: "Nebraska"
How it happened: The chatty but devious pair of strangers who Rick, Hershel and Glenn encountered at a bar in town were both shot in the head by Rick after it became obvious their curiosity about Hershel's farm wasn't coming from a friendly place.
Shock factor: Seeing Rick gun down two flesh-and-blood people was pretty shocking, and the sign of a new Rick -- despondent over the loss of Sophia and feeling like he let the group down.