Jordana Spiro
as Dr. Grace Devlin
William Forsythe
as Constantine Alexander
Zach Gilford
as Dr. Brett Robinson
Željko Ivanek
as Dr. Stafford White
Floriana Lima
as Nurse Rosa "Ro" Quintero
James Carpinello
as Franco Leoni
Jesse Lee Soffer
as Nate Devlin
Wendy Makkena
as Daniella Devlin
Jaime Lee Kirchner
as Dr. Olivia Wilcox