How Ryan Murphy Kept Even His Own Cast in the Dark on The Shards

Somewhere on the set of The Shards, a masked killer was hiding in plain sight, and not even the cast playing his potential victims knew who he was.

Ryan Murphy built an entire show around a serial killer terrorizing a tight circle of Los Angeles teens in 1981, then made sure the people filming it felt just as hunted as their characters did. What one actor has now revealed about the process is stranger, and more calculated, than anyone expected.

The Method Behind Ryan Murphy’s Silence About The Trawler’s Identity

The Shards follows Bret and his privileged friend group through their senior year at an elite LA prep school, as a killer known as the Trawler starts picking off teenagers around them. The arrival of a mysterious new student, Robert Mallory, only deepens the group’s suspicion of each other, and that same suspicion apparently bled straight off the page and onto set.

Talking about the season’s ending with Entertainment Tonight, Igby Rigney, who plays Bret, admitted the finale’s cliffhanger caught even the people making the show off guard.

“Um, I was a little shocked that we ended on such a cliffhanger,” he said. “We had no idea what was going to come up.”

That uncertainty tracked with how the entire shoot worked. By the cast’s own count, there were roughly eight characters in Bret’s circle who could plausibly have turned out to be the Trawler, and Murphy made sure that list stayed wide open for the whole production.

According to Hayes Warner, who is playing Debbie, Murphy went out of his way to keep every performer suspicious of everyone else on set, including themselves.

“We don’t know who it is,” she admitted. “Ryan was very clear. He would mess us up. He would go up to each one of us and say, ‘This take, you’re the killer. This take, you’re the killer. This take, you’re the killer.’ And never told us who it was. So, we just don’t know.”

The trick worked exactly as intended. Cast members walked away from scenes without a shred of certainty about who was actually guilty, which is precisely the unease that ended up on screen between Bret, Robert, and the rest of the friend group.

It lines up with what Murphy has said publicly about protecting the mystery, since he’s confirmed he knows the Trawler’s identity but has kept even his own actors out of the loop. Whether that secrecy survives a potential second season is still an open question.