Suggestions by @ondraf988

Lucas Jade Zumann

as Stannis Baratheon in House Targaryen

Score: +1

Rose Byrne

as Cassana Estermont in House Targaryen

Score: +1

Josephine Langford

as Lyanna Stark in House Targaryen

Score: 0

Naomi Scott

as Elia Martell in House Targaryen

Score: +1

Jacob Elordi

as Robert I. Baratheon in House Targaryen

Score: +1

Jaeden Martell

as Aegon Targaryen (S. of Rhaegar) in House Targaryen

Score: +1

Emilia Clarke

as Daenerys Targaryen in House Targaryen

Score: +1

Harry Lloyd

as Viserys Targaryen (S. of Aerys) in House Targaryen

Score: +1

Jamie Campbell Bower

as Rhaegar Targaryen in House Targaryen

Score: +1

Emily Blunt

as Rhaella Targaryen (D. of Jaehaerys) in House Targaryen

Score: +1

Joe Alwyn

as Androw Farman in House Targaryen

Score: +1

Jason Isaacs

as Aerys II. Targaryen in House Targaryen

Score: +1

Jon Hamm

as Steffon Baratheon in House Targaryen

Score: +1

Colin Farrell

as Ormund Baratheon in House Targaryen

Score: +1

Olivia Holt

as Jenny of Oldstone in House Targaryen

Score: 0

Alyson Stoner

as Jenny of Oldstone in House Targaryen

Score: 0

Katherine McNamara

as Jenny of Oldstone in House Targaryen

Score: -2

Amiah Miller

as Rhaelle Targaryen in House Targaryen

Score: +1

Tom Holland

as Daeron Targaryen (S. of Aegon) in House Targaryen

Score: +2

Emma Roberts

as Shaera Targaryen in House Targaryen

Score: 0