Lili Reinhart

as Olive Smith

Tom Bateman

as Dr. Adam Carlsen

Rachel Marsh

as Anh Pham

Jaboukie Young-White

as Malcolm Browne

Nicholas Duvernay

as Jeremy Langley

Arty Froushan

as Dr. Thomas Benton

Jeananne Goossen

as Dr. Juliet Aslan

Aladeen Tawfeek

as Dr. Eugene Fastuca