The Greyjoys are back on Game of Thrones, and there is some trouble brewing in the Iron Islands. In the same episode where Melisandre managed to bring Jon Snow back to life , her spell to kill the three kings opposing Stannis -- Robb Stark, Joffrey Baratheon and Balon Greyjoy -- finally was completed.

Patrick Malahide and Gemma Whelan on Game of Thrones

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In "Home," Balon was killed by his younger, crazier brother Euron Greyjoy (Pilou Asbæk), thus leaving a vacancy on the Seastone Chair. Balon's heir Yara (Gemma Whelan) naturally thought the Driftwood Crown would defer to her, but her uncle Aeron Greyjoy -- aka the Damphair -- shut her down when he explained that the next ruler will be decided in a Kingsmoot. With Euron back in town and Theon announcing he'll be heading back to Pyke, Yara could have some stiff competition for the throne.To break down what happened in Sunday's episode and tease what's ahead, we got Gemma Whelan on the phone to talk about the return to the Iron Islands. She promises that there's some good story ahead for the Greyjoys, plus shared the big question she and her ironborn costars are always speculating about.

Game of Thrones: Season 6, Episode 2 "Home" Photos 20 IMAGES

Patrick Malahide and Pilou Asbӕk on Game of Thrones

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I guess I knew -- and it all changes season to season because it's all sort of embargoed -- but I did know there was more for me to go and there were plans for the Greyjoys to do more than what they've done so far. I was told the storyline would expand in later seasons. Things can change, also; they may go in a different direction than what they decided, but they're often pretty faithful to what they said. I always knew that I would be given relatively more to do in later seasons, which is lovely. Of course, you can't really rely on that until you're on set shooting and on the TV [laughs].I guess the seeds are planted. You've filled in the gaps I suppose you're supposed to, but I can't really say what's going to happen other than they probably wouldn't have invested in such a start to the Greyjoy's story this season if it wasn't going to go somewhere. Pilou Asbæk was fantastic fun to work with. There's some stuff coming up.She knows she's got an uncle that's been gone, absent, for a very long time. I don't think she's expecting to see him. That's all I can say. [laughs]I guess that she's probably been getting on with leading her men and doing what the ironborn do best, on ships raving and reaving and pillaging and doing what the ironborn do best, I suppose. Life has continued as normal is all I've seen. It was nice to be back with Patrick Malahide and working together again. He's just fantastic fun to work with, and I think they've been having their typical father/daughter tense relationship. [laughs] Life has continued as normal, I suppose.Umm, I think she's pretty determined to fulfill that statement.Yeah, I do, absolutely. She's been there. She's grasped it. She knows the place inside and out, the men and how the ironborn work. She's seen the mistakes her father has made and is determined to push forward in a different way. Certainly I think she's a strong candidate.Oh gosh, that's a good question. In the book, her campaign at the Kingsmoot is really generous in terms of building a community. Her speech is all about community and family and strengthening that side of things. I imagine she would start at home and then maybe she would get bigger ambitions -- build a strong foundation first.I can't say anything! I can just say keep watching. [laughs]I know, right? It's incredible! And also seeing young Hodor really was quite moving to me. I love the brilliant casting. It was really wonderful to see young Hodor and all that world as well. I think there's plenty more to come, and of course they wouldn't plant the seed if they weren't to show a little more of that story -- I hope. I don't even know. You're absolutely right, so many things happened. The two dads to go like that, both murdered by family. [laughs] It's pretty harsh. There's no apology for any of it. The violence continues apace, doesn't it? That awful moment when that poor guy's skull was just smashed against the wall.Oh God! [laughs] It's relentless, but I didn't expect Ramsay to kill his dad like that. I really didn't, and I have the scripts. I went back through and read it this morning and I was like, "What, I missed that! Oh my God." [laughs] Shows how much of an actor I am, just looking at my own bits in the script.I do tend to just read to just read mine because I don't want to spoil things for myself as well, but obviously at the readthrough you head the whole lot of your episode. Everyone's storyline is so epic I can't really choose. I'm really hoping that Hodor's storyline is a good one this year, because Kristian [Nairn] is a dear friend of mine and it would be nice to see Hodor have a good go. And I'm always fascinated to see Jaqen H'ghar. I love him.That was so moving, wasn't it, when he said, "I'm going home"? Oh, I loved it.I know that she stands for family, truly down deep in her heart. Her version of morally correct. One would hope that they would manage to sort things out, but I don't know, you'll have to wait and see.Oh we are, yeah. We hang out. He's just one of my favorite people. He's such a good, good man. He's so talented and so humble and generous. I can't say enough good things about him. His storyline this season is one I really want to watch because poor old Theon deserves a break, doesn't he?Yeah! We speculate about how we wonder who's going to get the Seastone Chair in the end. "Maybe it will be you or maybe it will be me or maybe we'll share it." Maybe it's neither of us! We theorize, but we're never told anything. [laughs] Never told anything in advance.

Game of Thrones airs Sundays at 9 p.m. ET/PT on HBO.Terri Schwartz is Entertainment Editor at IGN. Talk to her on Twitter at @Terri_Schwartz