Last week, "The Flash" unmasked Zoom, only to reveal he was Hunter Zolomon -- Jay Garrick's Earth-1 doppelganger -- all along. However, this isn't the first time Barry Allen's nemesis wore a familiar face, and -- because of that -- he isn't going to take this revelation very well.

"It's betrayal and disappointment in himself," Grant Gustin told Entertainment Weekly. "Because it's almost like he's been through this before, and he can't believe he let himself go through it again."

"The Flash's" Huge Zoom Reveal, Explained -- Sort Of

In an earlier interview, executive producer Andrew Kreisberg also discussed the man posing as Jay Garrick, saying, "I don't think you can assume anything that Jay has said to the team or the audience is the full truth. It is a version of the truth."

Starring Grant Gustin, Carlos Valdes and Jesse L. Martin, "The Flash" returns airs Tuesdays at 8 pm EST on The CW.