Story: "Arkham Asylum: A Serious House On Serious Earth" (112 Pages)

Credits:

Grant Morrison (plot, script)
Dave McKean (art, colors)
Gaspar Saladino (letters)
Art Young (assistant edits)
Karen Berger (edits)

Feature Characters:

Batman
Amadeus Arkham (first actual appearance; dies in flashback)

Supporting Character:

James Gordon

Villains:

Joker (last in Black Orchid Vol. 1 #2; next in Batman #440)
Black Mask (last in Batman #400; next in Batman #484)
Clayface III (last in Batman #415; next in Secret Origins Vol. 3 #44/3)
Doctor Destiny (last in Sandman Vol. 2 #7; next in Justice League America #72)
Killer Croc (last in Secret Origins Vol. 3 #23/2; next in Demon Vol. 3 #11)
Mad Hatter (last in Animal Man #10; next in Secret Origins Vol. 3 #44/3)
Maxie Zeus (last in Batman and the Outsiders #15; next in Batman #470)
Professor Milo (last in Batman #327; next in ???)
Scarecrow (last in Sandman Vol. 2 #7; next in Batman #455)
Two-Face (last in Batman Annual #13; next in Batman #440)
Doctor Charlie Cavendish (first appearance; the administrator at Arkham)
Martin 'Mad Dog' Hawkins (first appearance; dies in flashback)

Other Characters:

Elizabeth Arkham (first appearance; Amadeus' mother; dies in flashback)
Constance Arkham (Amadeus' wife)
Harriet Arkham (Amadeus and Constance's daughter; first appearance of both; both die in flashback)
Ruth Adams (first appearance; a psycho-therapist at Arkham)
Pearl (first appearance; a kitchen employee at Arkham; dies)
Carl Gustav Jung
Aleister Crowley (both in flashback)