We spoke with a number of actors on the show who contributed thoughts on their characters' roles in the show's growth. Madeleine Martin (Shelley) and Madeline Brewer (Miranda) are new to the cast, while Bill Skarsgard and Landon Liboiron are reprising their roles as Roman and Peter, respectively.

Bill Skarsgård (Roman) on the show's increased maturity:

"The first season was about two boys. The second season is about two men who have grown up a bit. There's no more high school locker drama. They've gotten older. They're trying to adjust to an adult life."

Skarsgård on his character's struggle with darkness:

"Season one was so much about Roman trying to suppress all of these urges that he has. Even though they were not obvious to him at that point, there was still this lurking darkness he hated himself for. When he saw his best friend betray him, he decided he was going to indulge it. It's a self-destructive thing. You see that in season two. He hates every part of himself when he's not contained."

Landon Liboiron (Peter) on the evolution of Peter and Roman's relationship:

"In season two, it's a far older relationship, a much more mature understanding of each other. It's not them so much needing each other anymore, it's understanding being there for each other. It's less needy and more mature."

Madeleine Martin (Shelley) on joining the show in its second season:

"It was helpful because Shelley feels alienated from everyone. So coming in with all these prosthetics on my face was helpful. Everyone is staring at you for the first couple of days as they're getting used to you."

Martin on the more active women of season two:

"In season two, Shelley comes into her own and learns not to be a victim. How to fight for herself."

Joel de la Fuente (Dr. Pryce) on the "leap of faith" the cast took in season two:

"Season one was based so much on the book. Season two was not. Season one had a different writing team than season two. It was exciting to come back to play the character, and there was a huge question as to who the character would become. The writers were very concerned with taking it in their own direction. It was sort of like a great leap of faith for everybody."