Suggestions by @ice_fox

Iain Armitage

as The Fool in Assassin's Apprentice (Farseer Trilogy)

Karen Gillan

as Lira in To kill a kingdom

Colin Farrell

as Brashen Trell in Liveship Trilogy (Ship of Magic/The Mad Ship/Ship of Destiny)

Joaquin Phoenix

as King Shrewd in Assassin's Apprentice (Farseer Trilogy)

Toby Sebastian

as Regal in Assassin's Apprentice (Farseer Trilogy)

Angel Coulby

as Lady Patience in Assassin's Apprentice (Farseer Trilogy)

Erin Kellyman

as Molly in Assassin's Apprentice (Farseer Trilogy)

Diego Luna

as Fitz Chivalry in Assassin's Apprentice (Farseer Trilogy)

Elijah Wood

as The Fool in Assassin's Apprentice (Farseer Trilogy)

Elijah Rodriguez

as The Fool in Assassin's Apprentice (Farseer Trilogy)

Oscar Isaac

as Verity in Assassin's Apprentice (Farseer Trilogy)