“Breaking Bad” Season 5 Spoiler: Betsy Brandt, who plays Marie Schrader, Hank’s wife, Walter White’s sister-in-law, on “Breaking Bad,” says the series ending made her sick. Shooting “Breaking Bad” was so intense it "physically affected" her.

Breaking Bad’s Betsy Brandt said “There were days shooting, these last eight episodes especially, I just felt sick. My chest would get all tight and I just felt awful.”

But it was worth it. Betsy Brandt knew that before she ever stepped onto the set. Brandt says when she read the script for the "Breaking Bad" finale, she told Vince Gilligan, who created the show, that it was "the perfect ending for this show."

So does Betsy Brandt have any “Breaking Bad” Season 5 Spoilers? "It's funny. They want me to tell but they really don't want me to tell. People are crazy, `Tell me. Don't tell me. Tell me. Don't. No. Please stop.' That's kind of what it is."

As heart and stomach-wrenching as the “Breaking Bad” finale is, it is worth it. Betsy Brandt said to have a box of tissues ready. She said “I think you’re going to need a lot. Regardless of how it ends – and the ending is good, it’s really good – [but] one of the things I’m most proud of on this show is the story and how much everyone has grown to love these characters. My character isn’t the easiest person to love. And listen, there are people that don’t love her, but there are so many people who do and I love them all. My ending would probably be completely Pollyanna so it’s good I don’t write the show because I want them all to win. I want them all to survive and win.”

Not on “Breaking Bad.” Brandt says “I hope they both make it and if they do I hope that they can find some way back to each other. I don’t think Marie would ever be able to forgive and forget with Skyler, what she did, but I loved their relationship and if one or both of them doesn’t make it, I hope it’s respectful.”

Marie Schrader said “I wasn’t thinking ‘Oh this is the end.’ I was thinking about the moment. But then after it was over I just thought, ‘Oh my God. That’s it.’ [And then] Bryan Cranston was there and he was standing out of my sight line off to the side just staring at me and holding his AK-47 [laughs] with like his Heisenberg killer look. It was very, very funny.”

Moving on from “Breaking Bad” was wrenching. Betsy Brandt said "After we'd get a take then I'd just sort of start sobbing because you gotta get it out before you go home."

As much as her character hated Walter White, Betsy Brandt does not want to say goodbye to Bryan Cranston “My hardest scene was the restaurant scene. [begins to cry] I’m sorry. It’s just that the ending is Sunday, and I keep crying. [The hardest part was when] I told Walt he should kill himself. I told Bryan [afterwards], ‘Can I hug you?’ I said it over and over again, and I felt so sick. I hate looking [Cranston] in the eye and meaning it when I say it. And he was very sweet. And I love him. He’s such a a great actor, a great man and a great friend….It would be much easier to walk away if there weren’t such great memories. Vince Gilligan, he made this show about a high school teacher who cooks meth and it changed all of our lives.”

Betsy Brandt told Entertainment Weekly that she took the role of Annie Henry, Michael J. Fox's wife on "The Michael J. Fox," because of the intensity of “Breaking Bad.” She says “The Michael J. Fox Show” “doesn’t make me physically ill, whereas I really thought I might throw up on Breaking Bad. I thought, ‘Oh my God, my chest hurts. I don’t feel well, I don’t feel well.’ On Breaking Bad we laugh a lot when the cameras aren’t rolling, and on this show we laugh a lot when the cameras aren’t rolling and then I get to laugh when they are rolling too.”

The finale of “Breaking Bad” airs this Sunday on AMC at 9 p.m. EDT.