9 Things We Already Know About The Walking Dead's Devastating Season Finale

In the same interview with Entertainment Weekly, Lincoln (who plays Rick Grimes) had a lot to say as well: "I felt sick to my stomach when I read the script. It was the first day in the whole six years of working on The Walking Dead that I was late for work because I woke up in the middle of the night and I couldn't get back to sleep . . . I was so angry and frustrated and I felt sick. And that was just after reading it."