Suggestions by @soyroy

Terry O'Quinn

as Caesar in Fallout: New Vegas

Aaron Taylor-Johnson

as Benjen Stark in Robert’s Rebellion

Alan van Sprang

as Barristan Selmy in Robert’s Rebellion

James Purefoy

as Barristan Selmy in Robert’s Rebellion

Luke Evans

as Brandon Stark in Robert’s Rebellion

Amr Waked

as Lewyn Martell in Robert’s Rebellion

Barry Keoghan

as Petyr Baelish in Robert’s Rebellion

Timothée Chalamet

as Petyr Baelish in Robert’s Rebellion

Damian Lewis

as Jon Connington in Robert’s Rebellion

Toby Stephens

as Jon Connington in Robert’s Rebellion

Luke Roberts

as Arthur Dayne in Robert’s Rebellion

Hugh Laurie

as Jon Arryn in Robert’s Rebellion

Bonnie Wright

as Catelyn Tully in Robert’s Rebellion

James McAvoy

as Eddard Stark in Robert’s Rebellion

Wayne Foskett

as Rickard Stark in Robert’s Rebellion

Alex Pettyfer

as Jaime Lannister in Robert’s Rebellion

Jonathan Rhys Meyers

as Brandon Stark in Robert’s Rebellion

Tom Hiddleston

as Rhaegar Targaryen in Robert’s Rebellion

Tuppence Middleton

as Lyanna Stark in Robert’s Rebellion

Aisling Franciosi

as Lyanna Stark in Robert’s Rebellion