Suggestions by @bathannates

Cher

as Mermaid Barbie(s) in Barbie (1979)

Madeline Kahn

as Weird Barbie in Barbie (1979)

Melissa Barrera

as Supergirl in The Flash

Ben Affleck

as “It’s alive!” in The Flash

Cobie Smulders

as Wonder Woman in The Flash

Megan Gale

as Wonder Woman in The Flash

Jaimie Alexander

as Wonder Woman in The Flash

Élodie Yung

as Wonder Woman in The Flash

Olga Kurylenko

as Wonder Woman in The Flash

Amanda Seyfried

as Faora-Ul in The Flash

Ethan Hawke

as Henry Allen in The Flash

Quintessa Swindell

as Iris West in The Flash

Kyle MacLachlan

as “Who the **** is that?” in The Flash

Spoiler

as “Who the **** is that?” in The Flash

Keanu Reeves

as “It’s alive!” in The Flash

Sean Penn

as “It’s alive!” in The Flash

Spoiler

as “It’s alive!” in The Flash

Oscar Isaac

as “I’m rich” in The Flash

Tye Sheridan

as The Flash in The Flash

Javier Bardem

as General Zod in The Flash