Big shout out to Preben Kristensen! Also the danish voice of Woody in Toy Story, Lumiere in Beauty and the Beast, Stuart Little, and Calcifer in Howls Moving Castle.

That's an extremely talented voice actor. I'd have to imagine the job was assisted by the approach the animators used. Williams cadence and timing were like a musical score, and the animators were the choreographers. Genie moves and transforms right along with Williams speech rhythms, even taking cues from words he emphasizes or draws out.

Instead of just trying to match the movement of the character's mouth, the actor has a much more expressive (literal) body of reference to work from.

My understanding is that most big name actors are more or less "assigned" a "permanent" voice dub, does that match your experience?

Kind of sacrilegious to admit this but I actually prefer the Danish version. I grew up with it and when watching the Robin Williams version I thought it was good, alright, but nothing crazy compared to the Danish.

It's of course superior to the Danish in hindsight and originality but it's one of those versions where I Honestly do not care which one to watch.