Sadie Sink

as Ziggy Berman

Emily Rudd

as Cindy Berman

Ryan Simpkins

as Alice

McCabe Slye

as Tommy Slater

Gillian Jacobs

as C. Berman / Adult Ziggy

Kiana Madeira

as Deena

Benjamin Flores Jr.

as Josh

Ted Sutherland

as Young Nick Goode

Meghan Packer

as TV Anchor

Leigh Janiak

Director