"The Vampire Diaries'" Joseph Morgan is one of the most beloved villains on TV. But in last week's episode, fans saw his character Klaus' softer side.

Below, Morgan, who plays the perhaps not-so-evil hybrid on the blood-sucking The CW drama, spoke with The Huffington Post about the tear-filled scene and what it could mean for Klaus and Caroline a.k.a. Klaroline.

"There always seems to be a glimmer of hope," Morgan said about one of the most shipped couples on "The Vampire Diaries." "I think there's this spark between them."

As for who will die in Season 4 -- an event that has viewers on the edge of their seats -- Morgan was tight-lipped about the facts, but opened up about his feelings towards the big moment. "It's always ... kind of emotional to know that one of the people that you see every day, or almost every day, you're suddenly not going to see them so often," he said.

Read on for more from Morgan about Klaus finally getting out of the Gilberts' living room, who he's after next, his feelings about "The Vampire Diaries" spinoff, "The Originals" and much more.

There was a very moving moment for Klaus in last week's episode. There were actually tears in his eyes. Was it fun for you to play that side of him?
Yeah, definitely. The more opportunity I'm given to explore the different sides of him, the better for me. I was really allowed some freedom by our director as well. Mike Allowitz, who works on the show quite frequently, he allowed me to really go. In fact, I remember when we were filming, I said, "I don't know how far to go with the end." And he said, "Well, I think he's in love with her and she's dying. This is it! So go for it."

Do you think Caroline [Candice Accola] was being genuine with what she told Klaus or was she manipulating him into saving her life?
Well, here's the thing: I think that for Candice, the most interesting choice as an actor would've been to play it honest, which is what I believe she did. It just adds a level of complexity to her character, rather than that thing we've seen before of her trying to manipulate him. She has nothing to lose and she really, truly believes that he's going to let her die. She tells him, "I wish I could forgive you for all of these things you've done." I bought into it as an actor and as a character. I really do believe it was honest.

What can we expect the relationship to be between Caroline and Klaus after this? It's definitely the most extreme thing he's ever done to her.
Absolutely. The characters are still going to have a fair bit of interaction, certainly in this week's episode. He's still trapped in Elena's [Nina Dobrev] living room. [Laughs.] So he's not going anywhere for a bit.

What I like about these two characters is that there always seems to be a glimmer of hope, even with all the terrible things she's done and the vast differences in their personalities and the way that they see the world and interact with other people. I think there's this spark between them that is fascinating and it's nice to be able to continue to explore that. I think what's happened now between them will only add another layer of complexity to their relationship and it'll be interesting to see where it goes.

What about how this all affects Tyler and Klaus' already tumultuous relationship? Will we see much of them this week?
Yes, we will. My storyline in the upcoming episode is completely tied up with Caroline and Tyler. They're trying to translate the code on the Hunter's Sword and Klaus has a lot of ancient, relevant knowledge to help them crack the puzzle. But, like always, he's not just eager and willing to volunteer his knowledge; he likes them beg and tell him how useful he'll be and promise him things. He likes to puppeteer the whole situation. So there's going to be a lot of interaction between the two of them and the dynamics between the triangle that's there is very interesting.

It's impressive that Klaus has so much power, even caged in the Gilberts' living room. When can we expect him to get out of there? It must be weighing on him mentally, being locked in a room with the body of his little brother.
Yes, it is. I love that last week's episode started with Klaus staring at the body. I think that was really a great choice by the writers.

But, you know, he's going to have to get out of there soon, unless they're going to set the spinoff in Elena's living room. [Laughs.] He will be getting out of there and when he does, there's going to be a list of people he wants to visit after them getting rid of his brother like that.

Going back to the beginning of the season, I have to ask if you helped Michael Trevino embody Klaus? It was really fun to watch.
He was great, wasn't he? We didn't do loads together, but we've done a fair bit of scenes together since Tyler was sired to Klaus so he naturally picked up mannerisms and so on. Then we went to Monte Carlo together and did the whole press thing and stayed together for a while. So we've spent a bunch of time together as friends. He asked me a few little things [about embodying Klaus], but really, he just took it and ran with it. You know, what's weird is to hear someone else talking about your mannerisms. [Laughs.] But I like to think that Klaus almost sort of smells people because of his werewolf side. It's like he looks at everyone not as a person, so he's looking at this alien being in front of him, just curious, cocking his head. He's very objective about the world so he has a sociopathic nature. Trevino did a really great job with embodying some of that, for sure.

We know there is a huge death coming this season. I know you can't say much, but what was your reaction when you found out?
You know, it's always difficult. I saw a little bit of it when Sarah Canning [who played Jenna] went at the end of Season 2, although I didn't get a chance to get to know her that well -- and I was playing the character responsible for her dying, which is slightly awkward. [Laughs.] But it's weird because you're such a part of each others' lives. We're in a bit of a bubble here in Atlanta so it's always a strange feeling. They try to give us as much notice as they can that someone's going to die and give the person in question as much notice as they can, but it's always still a little awkward and kind of emotional to know that one of the people that you see every day, or almost every day, you're suddenly not going to see them so often.

On the opposite end of the spectrum, fans have also been teased about a "shocking and much-anticipated return" coming up. A lot of viewers have their money on Elijah since Daniel Gillies signed on for "The Originals." What can you say about that?
[Laughs.] That's logical, isn't it? To assume that? Yeah, I mean, I would hope it's Elijah. It would make sense if it is to lead up to "The Originals." But you never know. He could just be in New Orleans waiting for Klaus. But it does make sense, doesn't it?

Will you be shooting on location in New Orleans?
Yes. We're filming a little bit in Atlanta and then we're doing about five days in New Orleans for the pilot. Then, I think, should we be picked up, we'd go between the two, but more often in Atlanta in the studio that we shoot at.

What leads Klaus to leave Mystic Falls and head to New Orleans in "The Originals"?
I can't really give any details because I don't have the exact details myself. I know leading up to that what happens and know what happens when he gets there, but I'm waiting for the script to be released for the episode that will tell me exactly. But I feel like it's going to be tied up with the cure and with Silas and all of that kind of business. We'll see. But it would have to be something pretty strong, wouldn't it? He has set down some roots now in Mystic Falls. He's tried to leave a few times though, having said that. I think he's even packed boxes a couple of times. [Laughs.] So we'll see.

Have you met any of new cast members yet?
Actually, I know Charles Michael Davis. [Laughs.] I used to play poker with him when I lived in Los Angeles. He texted me when he was auditioning and then he text me again when he was testing for it so I was thrilled when he got the role because our characters, Klaus and Marcel, have a history. It's wonderful to know that it's going to be him. He's such a smart guy and he's got a killer role ... pun intended. [Laughs.] It's fantastic. But I haven't met the others yet.

Do you know know how much or how little Klaus would be involved in "The Vampire Diaries" should "The Originals" get picked up?
I would assume very little, just because I'd have to film 22 episodes of "The Orignals" and it would be pretty tough. [Laughs.] But I know that there would be crossovers. Definitely. I mean, here's the thing that I think really speaks in favor of it: There's such a strong following for "The Vampire Diaries" so the idea of expanding that world so you have two shows that characters move between and refer to each other and storylines crossover, I think that's just surely such a tempting idea for the fans. That could be wonderful! You'd never know who's going to show up where because the reality is, we'd be filming in studios that were just down the road from each other the majority of the time. Bringing a character over to film a scene here and there, if not a whole episode, would be very easy thing for them to do. It just means the whole thing gets more complex and more interesting, I think.

"The Vampire Diaries" airs Thursdays at 8 p.m. EST on The CW.

Loading Slideshow...
  • 'Beauty and the Beast'

    Detective Catherine Chandler is a smart, no-nonsense homicide detective. Several years earlier, Catherine witnessed the murder of her mother at the hands of two gunmen. Catherine would have been killed too, but someone - or something - saved her. No one has ever believed her, but she knows it wasn't an animal that attacked the assassins...it was human. Years have passed, and Catherine is a strong, confident, capable police officer, working alongside her equally talented partner, Tess. While investigating a murder, Catherine discovers a clue that leads her to a handsome doctor named Vincent Keller, who was reportedly killed by enemy fire while serving in Afghanistan in 2002. Catherine learns that Vincent is actually still alive and that it was he who saved her many years before. For mysterious reasons that have forced him to live outside of traditional society, Vincent has been in hiding for the past 10 years to guard his secret - when he is enraged, he becomes a terrifying beast, unable to control his super-strength and heightened senses. Catherine agrees to protect his identity in return for any insight he may have into her mother's murder. Thus begins a complex relationship between Catherine and Vincent, who are powerfully drawn to each other yet understand that their connection is extremely dangerous for both of them.

  • 'The Carrie Diaries'

    It's 1984, and life isn't easy for 16-year-old Carrie Bradshaw. Since their mother passed away, Carrie's younger sister Dorritt is more rebellious than ever, and their father Tom is overwhelmed with the responsibility of suddenly having to care for two teenage girls on his own. Carrie's friends - sweet, geeky Mouse, sarcastic and self-assured Maggie and sensitive Walt - make life bearable, but a suburban life in Connecticut isn't doing much to take her mind off her troubles. And even though the arrival of a sexy new transfer student named Sebastian brings some excitement to Carrie's world, she is struggling to move on from her grief. So when Tom offers Carrie the chance to intern at a law firm in Manhattan, she leaps at the chance. Carrie's eyes are opened wide at the glamour and grit of New York City - and when she meets Larissa, the style editor for Interview magazine, she's inspired by the club culture and unique individuals that make up Larissa's world. Carrie's friends and family may have a big place in her heart, but she's fallen in love for the first time with the most important man in her life - Manhattan.

  • 'The Carrie Diaries'

    It's 1984, and life isn't easy for 16-year-old Carrie Bradshaw. Since their mother passed away, Carrie's younger sister Dorritt is more rebellious than ever, and their father Tom is overwhelmed with the responsibility of suddenly having to care for two teenage girls on his own. Carrie's friends - sweet, geeky Mouse, sarcastic and self-assured Maggie and sensitive Walt - make life bearable, but a suburban life in Connecticut isn't doing much to take her mind off her troubles. And even though the arrival of a sexy new transfer student named Sebastian brings some excitement to Carrie's world, she is struggling to move on from her grief. So when Tom offers Carrie the chance to intern at a law firm in Manhattan, she leaps at the chance. Carrie's eyes are opened wide at the glamour and grit of New York City - and when she meets Larissa, the style editor for Interview magazine, she's inspired by the club culture and unique individuals that make up Larissa's world. Carrie's friends and family may have a big place in her heart, but she's fallen in love for the first time with the most important man in her life - Manhattan.

  • 'Emily Owens, M.D.'

    At long last, Emily Owens feels like she is an actual grown-up. She can finally put her high school days as the geeky-girl-with-flop-sweats behind her; she's graduated from medical school and is now a first-year intern at Denver Memorial Hospital, where she'll have the chance to work with world-famous cardiologist Dr. Gina Beckett - and where, not-so-coincidentally, her med-school crush Will Rider is also an intern. So why does everyone keep warning her that the hospital is just like high school? Emily soon finds out the hard way - her high school nemesis, the gorgeous, popular Cassandra Kopelson, is also just starting out at Denver Memorial, and it seems like they're rivals all over again - not only as surgical interns, but for Will's attention. Fellow intern Tyra Granger warns Emily that the cliques at Denver Memorial are all too familiar: the jocks have become orthopedic surgeons; the mean girls are in plastics; the rebels are in the ER, and Tyra has her own awkward place as the principal's kid - her father is the chief resident. Emily's the new kid all over again, and it's just as awkward as high school. Only this time around, Emily will have to balance the personal and emotional turmoil of social politics with the high-stakes world of life-and-death medical decisions. At least she has fellow intern Tyra and nerdy-but-cute resident Micah, to count on as friends. Emily is growing to realize that although she may be a geek, she may also grow to be a great doctor, flop sweats and all.

  • 'Emily Owens, M.D.'

    At long last, Emily Owens feels like she is an actual grown-up. She can finally put her high school days as the geeky-girl-with-flop-sweats behind her; she's graduated from medical school and is now a first-year intern at Denver Memorial Hospital, where she'll have the chance to work with world-famous cardiologist Dr. Gina Beckett - and where, not-so-coincidentally, her med-school crush Will Rider is also an intern. So why does everyone keep warning her that the hospital is just like high school? Emily soon finds out the hard way - her high school nemesis, the gorgeous, popular Cassandra Kopelson, is also just starting out at Denver Memorial, and it seems like they're rivals all over again - not only as surgical interns, but for Will's attention. Fellow intern Tyra Granger warns Emily that the cliques at Denver Memorial are all too familiar: the jocks have become orthopedic surgeons; the mean girls are in plastics; the rebels are in the ER, and Tyra has her own awkward place as the principal's kid - her father is the chief resident. Emily's the new kid all over again, and it's just as awkward as high school. Only this time around, Emily will have to balance the personal and emotional turmoil of social politics with the high-stakes world of life-and-death medical decisions. At least she has fellow intern Tyra and nerdy-but-cute resident Micah, to count on as friends. Emily is growing to realize that although she may be a geek, she may also grow to be a great doctor, flop sweats and all.

  • 'Arrow'

    After a violent shipwreck, billionaire playboy Oliver Queen was missing and presumed dead for five years before being discovered alive on a remote island in the Pacific. When he returns home to Starling City, his devoted mother Moira, much-beloved sister Thea, and best friend Tommy welcome him home, but they sense Oliver has been changed by his ordeal on the island. While Oliver hides the truth about the man he's become, he desperately wants to make amends for the actions he took as the boy he was. Most particularly, he seeks reconciliation with his former girlfriend, Laurel Lance. As Oliver reconnects with those closest to him, he secretly creates the persona of Arrow - a vigilante - to right the wrongs of his family, fight the ills of society, and restore Starling City to its former glory. By day, Oliver plays the role of a wealthy, carefree and careless philanderer he used to be - flanked by his devoted chauffeur/bodyguard, John Diggle - while carefully concealing the secret identity he turns to under cover of darkness. However, Laurel's father, Detective Quentin Lance, is determined to arrest the vigilante operating in his city. Meanwhile, Oliver's own mother, Moira, knows much more about the deadly shipwreck than she has let on - and is more ruthless than he could ever imagine.

  • 'Cult'

    Robert Knepper as Billy Grimm/Roger Reeves and Alona Tal as Kelly/Marti.

Earlier on HuffPost: