Naomi Watts

as Jean Holloway

Billy Crudup

as Michael Holloway

Sophie Cookson

as Sidney Pierce

Karl Glusman

as Sam Duffy

Lucy Boynton

as Allison Adams

Poorna Jagannathan

as Larin Inamdar

Melanie Liburd

as Alexis Wright

Brenda Vaccaro

as Claire Rogers

Brooke Bloom

as Rebecca Rogers

Taofa Maneeprasopchok