Ardyn Izunia アーデン・イズニア

"Chancellor of Niflheim. Ardyn rose to power by introducing magitek infantry to the ranks of the imperial army, and has since amassed political power at the emperor's side. An aloof manner shrouds the chancellor in mystery."

—Official description

Chancellor Ardyn Izunia, alternately known as Ardyn Lucis Caelum, is the main antagonist of Final Fantasy XV who also appears in the feature film Kingsglaive: Final Fantasy XV. He handles the Niflheim Empire's political operations for Emperor Aldercapt, and is responsible for the expansion of Verstael Besithia's magitek infantry.