SOPHIA BUSH
as Dr. Sam Griffith

JASON ISAACS
as Dr. Rob “Griff” Griffith

MICHAEL STAHL-DAVID
as Dr. Caleb Tucker

SKYE P. MARSHALL
as Dr. Lex Trulie

WENDY CREWSON
as Vivian Katz

OMAR MASKATI
as Dr. Isan M. Shah

EDWIN HODGE
as Malcolm A. Kingsley

DAVI SANTOS
as Dr. Joey Costa