Ok, it is impossible to cast the primary character. David Bowie is dead, Bill Nigh and Neil Gaiman are a bit too old (and not skinny in Neil's case). they did better than anyone I can think of. Otherwise.
Patten Oswald as Matthew the Raven.
The best voice actor since the era of Paul Fries and Mel Blanc as the masked PumpkinMan
Gwendolyn Christie is maybe even better than Lucifer as Lucifer. She's just a bit overly beautiful and sweet looking, and yet, mighty.
Casting...WoW so good they seem like special effects, and the Special Effects, Direction were also great... story was already epic. Some individual parts are about the best things ever on video.