Hi Tabs, welcome to the game. I'm Zhe and I have two at the moment, Roose and Jaqen.
Very good to see that Theon has made it! While I can't offer much with Jaqen at the moment, he is looking for Arya, so who knows where that will lead him?
I suppose there might be some past-events with Roose or maybe future ones if you'd like. I recall reading how Theon had poked fun at Bolton at war councils with Robb, mocking and japing about his voice and leeches. So feel free to, because you know that loser Roose is just the right guy to jape about. ;D
Roose is -eventually- going to end up at Riverrun. With the Wall news, he can't be absent for the inevitable decision-making that will result from it.