They should have used this Kim Jong Un impersonator in their movie.
https://www.youtube.com/watch?v=RlOaxe5C2nE
He’s done a McDonald’s commercial as the Un and nukes America!
https://www.youtube.com/watch?v=TS7g1Mpl12o
He doesn’t give out his surname because he’s concerned that the real Un will have him assassinated.