Who’s the scariest person on “American Horror Story: Hotel”? The residents of the Hotel Cortez — “a breeding ground of evil,” as star Matt Bomer says — weigh in.

“The white-haired children, I have to say I’m really not sure who they are, I just have to say they unnerve me,” says Denis O’Hare. “Then there’s Mr. March himself, who, even though he’s dead, is still causing great harm.”

“The main threat living within the hotel? I feel like there’s probably multiple threats and they’re coming at you from all different angels. … I enter the hotel. We’re not so sure that I exit,” says Max Greenfield with a laugh. He later adds, “Maybe the main threat in the hotel is Lady Gaga. I feel her presence in every scene that we shoot. Gaga’s here.”

RELATED: Evan Peters makes his murderous return to ‘AHS,’ fans go nuts

Wes Bentley takes a different tactic. He says it’s not a who, but a what.

“I think the hotel itself is the main threat. It’s beautiful, it’s dark, it’s huge and it’s sort of falling apart,” says the actor who plays Det. Lowe.

Who do you think is the main threat on “American Horror Story: Hotel”? The possibilities expand with every episode, Wednesdays at 10 p.m. ET/PT on FX.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."