David Morrissey just made a big return to “The Walking Dead” as the menacing Governor character this past weekend. Monday night (Nov. 18) on “Conan,” he says people love to hate him — and that the show kind of ruined “Mad Men” for him.

“People run up to me all the time and say, ‘I hope you die soon’ and I take it as a compliment,” says Morrissey. “I was in the post office once and there was a woman in front of me waiting in line and she turned around and saw my face and dropped to the floor, said ‘Oh my god, I hate you’ and she ran out. … That’s a great reaction.”

He goes on to say that the “Walking Dead” cast and crew aren’t messing around — they’re filming in the blood and the guts and the Atlanta humidity.

“The show is about people who are really up against it and in this terrible world. … The show, for me, has ruined ‘Mad Men.’ I used to love watching ‘Mad Men,’ but now I watch it and I think ‘There you in your air-conditioned studio, in your nice suit, drinking’ and I think, ‘How can you pick your check up at the end of the week?'” he cracks. “Come on our show for a week.”

And would Morrissey ever want to be a zombie?

“If you’re a zombie, if you ever see the makeup team do the Plaster of Paris for your zombie makeup then you’re really running out of there. I don’t ever want to be a zombie, I love being the Governor,” says Morrissey, adding that he likes that the show isn’t afraid to kill off its characters.

“I like the fact that it’s a show that kills off its actors, though. It’s not like a ‘Star Trek’ show where you’ve got four guys beaming down and there’s one guy you’ve never seen before and you know he’s not making it back to the Enterprise. … No one is safe on our show and that’s the way we like it.”

“The Walking Dead” airs Sunday nights at 9 p.m. ET on AMC.