'Once Upon a Time': Colin O'Donoghue on Captain schwan 'I Liebe Yous', Hook's Heroic Goals & More! 

\'Once Upon a Time\': Colin O\'Donoghue on Captain Swan \'I Love Yous\', Hook\'s Heroic Goals & More!

, so to give you the inside scoop into this Sunday\'s all-new episode, we called up everyone\'s favorite pirate Colin O\'Donoghue and talked about all things coming up for Killian in the past, present and future.

From his mysterious history with Ursula (Merrin Dungey), to his desire to "be the best man he can" for Emma (Jennifer Morrison), and a potential Storybrooke bromance, set sails for an article that\'s jam-packed with exclusive scoop you won\'t find anywhere else.

Fans are thrilled about this week\'s episode, what can you tease about Hook\'s relationship with Ursula?

Colin O\'Donoghue: In this episode you sort of find out their past and what happened in their past. Hook once helped Ursula run away from her father Poseidon, who was using her voice to make pirate ships run into rock and such and she didn\'t really want to be a part of that any more. He decides that he\'ll help her -- and he meant it -- until a certain point when things went a little bit funny. In sort of modern-day present times, Hook has decided to take a page out of Emma\'s book and offer Ursula a chance at her happy ending in exchange for her telling him what exactly Gold\'s plan is.

NEWS: \'OUAT\' Scoop Regina\'s Next Move and Hook\'s Ursula Connection

What was your reaction when you discovered that Hook and Ursula had a past that no one knew about?

CO: It was funny, I kind of knew that they did from the episode -- I can\'t remember the episode number -- but you see the first time Ursula sees Hook and vice versa in Storybrooke, she gives him a very icy "Captain" and I was like, \'Ooooh, I wonder what that means. What happened?\' So it\'s interesting. I think people will be fascinated to see what happens.

One of the things that we love about Killian is that he has successfully transitioned from villain to hero. Since Adam and Eddy have told us that this season is about questioning identities, will we see Killian question whether or not he\'s really a hero?

CO: Yeah you do. You kind of saw that a little bit through the whole second half of this season. Hooke has lived for hundreds of years as a pirate with hatred and wanting to see revenge on Rumpelstiltskin, and that\'s hard to let go of. And I think that he is sort of trying to be the best man he can be for Emma -- he\'s trying to do everything right by her. And sometimes he slips up, and I think those slips for him he feels like they\'re weakness and I think he prides himself on being a very strong-willed character. You definitely will see him struggle because he is still a pirate and there\'s still parts of his pirate-ness in him.

NEWS: \'OUAT\' Spoilers: We Answer 22 of Your Most Burning Questions!

Speaking of the fact that he\'s still a pirate, fans are dying to know when he\'s going to get the Jolly Roger back?

CO: Well that\'s if he gets the Jolly Roger back. I can\'t really let people know if he does or he doesn\'t, but it\'ll be interesting to see.

In the first episode back, we discovered that Emma has a heart with a great potential for darkness, what do you think Hook\'s reaction would be if she were to let herself succumb to the villain side?

CO: At the moment, he\'s trying desperately to be there for her with all the stuff she\'s going through with Mary Margaret and David, and he\'s trying to help guide her. He\'s lived with darkness, and he\'s trying to use his past experiences to try and help guide her as best he can. To try to be a good person and stay on the right path. So at the moment, I would think that he\'s just trying to help her be The Savior and try and be supportive of all of that. If she ever let the darkness in, Hook loves her and I\'m sure he\'d do his best to keep loving her.

You mentioned that Hook does indeed love Emma, so when are we going to see the couple exchange their \'I love you\'s?

] Well Hook has kind of laid his feelings out and you sort of saw that last season at the bridge where they had to tell a secret that nobody knew, and he said that he had feelings for Emma. They\'re obviously seeing each other and they\'re trying to figure out how that works in Stroybrooke, so I guess the Captain Swan fans will just have to wait and see if they get a big Captain Swan moment.

Well the Captain Swan fans are certainly a passionate fandom, and they use the word "coffee" a lot, do you know what that means?

CO: Well I drink a lot of coffee and there\'s lot of pictures with coffee cups, so I\'m guessing that that\'s what it is, I don’t fully understand what that means. [

.] I want to know, tell me what does it mean?

Apparently coffee is a code word for when Emma and Killian get…

WATCH: The Queens of Darkness Want to Destroy The Charming Family!

One of the great parts about last week\'s episode was watching you play Hook, pretending to be Rumple, pretending to be Hook – what was it like getting into that mindset?

CO: It\'s fun! Bobby is one of my favorite actors and always has been before I even signed on to this, and it was fun to be able to try not to impersonate Rumpelstiltskin, but to be able to bring a little bit of Rumpelstiltskin-ness to Captain Hook, so hopefully that worked. But it\'s always fun to play that character you\'ve played for a while, but in a different way.

Fans are loving the friendship between Hook and Belle, has it been fun sharing scenes with Emilie?

Yeah Emilie is great so it was fun to sort of get to do that, Hook and Belle have a complicated past as well and it\'s good that they\'re getting along.

world that you would like to see Killian share scenes with?

CO: I\'ve been lucky that I\'ve got to work with most everybody which has been great. But Sean and I get on great, so it would be fun to have some Robin/Hook or Captain Hood scenes or whatever they call them. [

] Whatever that friendship is called, that would be fun – I think we\'d have a laugh.

NEWS: 6 Thoughts We Had While Watching the Spring \'OUAT\' Premiere!

CO: I haven’t really gotten to use my left hand that much, so [

] that would be fun. It was fun for that one episode when I got my hand back. It\'s weird because once I\'m in my costume I automatically -- even if I\'m not holding my hook -- I hold my hand in that position. I noticed myself doing it in the scenes when I actually had a hand. [

What are you most excited to see from Colin O\'Donoghue on

? Sound off in the comments below or chat with @LeanneAguilera on Twitter!

Vin Diesel Names His Daughter Pauline as Tribute to Paul Walker

Did Rob Kardashian Just Compare His Sister Kim to \'The B*tch From \'Gone Girl\'?\'

Khloe Kardashian Says Brother Rob Suffers from \'Social Anxiety\'

Jennifer Lawrence and Bradley Cooper are Back In New \'Serena\' Trailer

Jamie Dornan: Christian Grey is a \'Sick Psychopath Bastard\'

\'Glee\' Cast Reveals What They Stole From Set!

Channing on Joe Manganiello\'s \'Unreal\' \'Magic Mike XXL\' Moves