KJ Apa & Madelaine Petsch Know Exactly Who Black Hood is on 'Riverdale'

The identity of Black Hood is the biggest mystery on Riverdale since Jason Blossom’s killer — and the stars actually already know who the person under the mask is.

When stars KJ Apa and Madelaine Petsch found out the identity of the masked killer, they both had very different reactions.

“I already knew. I guessed it,” KJ boasted a little to Glamour. “But everything is very…it’s hard to say.”

However, Madelaine was shocked at who it was.

“I didn’t guess it. When I read it, it shocked me, but you won’t have to wait much longer,” she promises. “A couple more episodes and the mystery will be revealed.”

Any more guesses on just who Black Hood is?