Fans are moving as fast as the speed of lightning to call for “The Flash” star Grant Gustin to replace embattled Ezra Miller in the upcoming WB film adaption of the DC superhero.

Miller, 29, who identifies as nonbinary and uses they/them pronouns, has caught fire from Warner Bros. studio heads after they were arrested on March 28 in Hawaii for disorderly conduct and harassment

Gustin, 32, has portrayed Barry Allen/The Flash on the CW series of the same name since 2014, and the show was recently renewed for a ninth season.

The “Perks of Being a Wallflower” actor’s future with the film hangs in the balance, as Warner and DC executives held an emergency meeting on March 30 to discuss the arrest.

The conclusion of the assembly was to pause all future projects involving Miller and any public appearances they are scheduled to make for the action flick.

Last year, Miller also had “frequent meltdowns” during production on the set of the film, according to a Rolling Stone report published on Wednesday.

Fans dashed to social media to call for Gustin to become the next big-screen Barry Allen. Someone shared a meme of the “Glee” alum flashing a peace sign next to a headstone with Miller’s photo on it.

“Probably a good time to mention this, Grant Gustin would’ve been a much better DCEU [DC Extended Universe] Flash,” a Gustin supporter suggested