Thrillist: Mason is a preacher who spreads the word of God by riding around on a boat. How do you prepare for that kind of role?
Michael Mosley: Somebody else was actually cast as this part initially, but then that fell through. So I got a last-minute call saying, "Can you be on a plane in a couple days and come down and work on this thing?" It struck me by surprise so I didn't have a lot of time to do research. When I got there, I asked the director on my first episode, "Who is this guy? Is he good, bad, crazy? Where is this going? Is he really a religious person? Or is this all an act?"
Is it all an act?
Mosley: When you see Mason in the flashback, and he's intervening in that robbery, I think he walks into the season thinking he's bulletproof. He really does think that he's blessed or that he's touched in a way that others aren't. He has extreme blind faith in himself and in his abilities. But by the end, his faith is shaken. That last scene with the baby, I was playing that like he wasn't sure what he was gonna do until the baby was in the water, you know? When he's walking into the lake, you're like, Oh, God, it got to him too -- this poison that's in everybody on Ozark. But right there at the end he realizes there's still hope. What did you think? Did that scene freak you out?
I initially thought, with the way you were walking toward the water, you were definitely going to kill your son. Then I didn't. Then I did again. Then I didn't. Do you remember what the script called for in that scene?
Mosley: I don't, but I remember when the script came out, we were shooting, like, Episode 9 or something, and I was reading the baptism scene in my hotel room in Atlanta, where we shot it, thinking, Holy. Balls. I'm in the last sequence of this thing, and they got me doing this? This is creepy shit. I've never done anything like that. I've been on Sirens telling dick jokes in an ambulance for two seasons, and now I'm out here in the water maybe killing a baby? Crazy. I knew it was going to be so effective. Mason's just said, "Why would I want to keep a baby alive in this world?" So you were supposed to be scared. You were supposed to think that Mason's snapped and that he doesn't want the baby.