Mare of Easttown's Cameron Mann auditioned thinking he'd have a minor role

Entertainment Weekly

Mann is 15 now but was 13 years old when he filmed the HBO drama. "The scenes for the initial audition didn't really reveal much about the character but I knew Kate Winslet was starring in this so I knew it was pretty big time," he tells EW in a joint interview with his TV mom Julianne Nicholson. "Initially I didn't know that my character would be such a big part in the show. We got episode 7 just before filming started, and I'd read the other six episodes but I had no idea that this plot twist was coming." Mann adds: "I'm pretty sure it was originally written as mostly voiceover as well. I pretty much had to learn it right before we filmed it."