“I literally locked myself in a room for like a week and just mapped out who everybody was. Anything that was connected to Maggie I watched. It wasn't until after I was done filming that I then actually binged the show as a fan. I'm glad that I waited that long because I would have fan-girled out on my castmates. To walk into season 11 and literally have every single one of them — Jeffrey Dean Morgan, Norman Reedus, Lauren Cohan, Seth Gilliam, and Callan, those were mainly who I worked with — they were so welcoming and so down to earth and they all had a special rapport between them. Nobody had an ego. I have to say it just really made the experience so enjoyable.
Lauren and I just instantly clicked. She was like a sister. There was an instant connection. Very helpful. [She] kind of showed me the ropes in terms of how to shoot the bow and arrow. One of the early days of filming, there was a scene where we're in the tunnel and we're about to be attacked by walkers. They're coming right at us and the director — I think it was just written that it was just Norman shooting — and he's like, "Agatha, why don't you come and shoot some bows and arrows?" And I was like, "Oh my God, I've never done this before.
Norman was so sweet. He pulled me aside and he goes, "Look, this is how you do it." [He] showed me how to sell the kill on the walkers. You stab them in the head, but to really sell it [it's] the way you pull it out. And Jeffrey Dean, he's so shy. He's lovely. They were all really lovely to me.” -- Laurie Fortier, Insider