Aron von Andrian

as Phil Robertson

Amelia Eve

as Kay Robertson (née Carroway)

Scarlett Abinante

as Kay Carroway, age 12

Matthew Erick White

as Phil Robertson, age 17

Ronan Carroll

as Phil Robertson, age 12

Brielle Robillard

as Kay Carroway, age 15

Aaron Dalla Villa

as Si Robertson

Brasher Russell

as Si Robertson, age 10