Young Hiram - Riverdale Season 3 Episode 4

Hiram won't be avoiding the flashback treatment either: Mark Consuelos' real-life son Michael Consuelos will portray his teenage self.
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Girls Washroom - Riverdale Season 3 Episode 4

Younger Alice, Sierra, and Hermione are hiding out in the girls' bathroom. Penelope is handing out notes for tardiness.
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Riverdale High 1992 Season 3 Episode 4

Riverdale is heading back for a full-blown flashback to the early years of the 1990s. The main cast portrays the younger versions of their parents.
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Wishmaker - Riverdale

A young Sierra, Penelope, and Hermione look stunned after a big development at their high school. Sierra has her children's toy to provide guidance, if needed.
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Riverdale Season 3 Episode 4 Quotes

Veronica: Newsflash, Mom: banning something only makes it more interesting
[Veronica hands Betty a mug]
Betty: Thank you.
Veronica: Now this stupid game is literally all anyone is talking about.
Betty: You’re not playing are you, V?
Veronica: B, you don’t make Vibe’s 20 under 20 by prancing around in the woods dancing in a deer carcass.

Alice: Forsyth Pendleton Jones Jr. He was the BMOC. An all-American athlete, a “stud muffin” as we used to say. He was different back then, Betty. Trying to be something different than what he was, but still trouble.
[Flashback returns to present]
Alice: I was as tough as nails, but around FP, silly putty. Even in detention with the secret growing inside me, I hated him … but I wanted him.
[Betty waves for her mom to stop]
Betty: Ugh, okay, okay, Mom. I get it.