King - 11 Halloween Costume Ideas
King costumes lean on formal weight and quiet authority, Aragorn's earned, weathered leadership, King Viserys's ailing but regal presence, Napoleon's sharp military command. The posture matters as much as any crown or robe.
A crown is the fastest way to signal this if the rest of the outfit is more understated, but posture does real work too, standing a little taller and moving a little slower reads as authority on its own.
Not always, some of these characters read royal through posture and a formal accessory rather than an elaborate build.
A mix of fantasy, historical, and modern figures, check the specific character.
A crown over a formal outfit, plus confident, unhurried posture.