Maybe break this down into Earths-Two, One, and ... um ... New? Roygbiv666 20:52, 15 May 2008 (UTC)
Not entirely sure about which Earth is which (I get confused where multiversal upheavals are concerned) but here are a bunch of Joker kills from the earliest comics and from some of the Joker origin stories.
[Batman #1 - Batman vs. The Joker]
Henry Claridge - Owner of the Claridge Diamond. Secretly injected with a Joker toxin solution that kills in 24 hours.
Jay Wilde - Owner of the Ronker's Ruby. Struck with a toxic dart.
Brute Nelson - Racketeer. Shot by the Joker with a revolver.
Judge Drake - Killed with Joker toxin. Unknown form but likely the same method as Claridge.
[Detective Comics #475 - The Laughing Fish]
"Blue-Eyes" - One of Joker's henchmen. Shoved in front of a speeding truck for asking a question.
G. Carl Francis - Patent clerk. Killed with a binary compound of Joker toxin.
Thomas Jackson - Bureaucrat. Bitten and poisoned by his pet cat which was infected by eating a Joker fish.
[Batman: Dark Detective]
Haney - Politician. He and a police inspector are poisoned with Joker toxin fuming from a CD player.
Harvey - A clone of Harvey Dent/Two-Face created by Dr. Double X. Blown up by bomb planted in Two-Face's hideout.
About 5 SWAT team members impaled on spikes in the Joker's booby-trapped house.
[Batman #321 - Dreadful Birthday, Dear Joker]
Sidney - One of Joker's goons. Shot with a BANG! flag spear-gun for not laughing at Joker's jokes.
[Batman: The Man Who Laughs]
Roughly 10 people used as test subjects for Joker toxin.
Anchorwoman - Killed with Joker toxin; unknown delivery.
Henry Claridge - Upper-class citizen. Killed with time-released Joker toxin; unknown delivery.
Williams Medical Center staff - 3 orderlies killed by C-4 on door, at least two guards gunned down with an SMG, 1 orderly shot between the eyes.
Police - Unknown number killed by crashing helicopter.
Jay Wilde - Upper-class citizen. Killed with Joker toxin.
At least 2 reservoir workers killed with Joker toxin.
[Batman: Lovers & Madmen]
Kirsch Family - Father and two brothers, each killed with headshots.
About four bank guards; 3 gunned down, one stabbed in the heart with a pencil.
3 thugs; one booted in the head, one strangled with a chain and another killed after falling from a catwalk.
Random cop - Seen dead, cause of death unexplained.
Various Gotham citizens killed by poison-soaked shards of glass raining from an exploding blimp. Exact number unknown.
Father - Sprayed with either Joker toxin or acid. No body shown.
Chained-up thug - Sprayed with Joker toxin.
Hostage shooting gallery - Several shot, some blown up. Exact number of deaths unknown.
[Batman: Dead To Rights]
Prisoner - Squirted with acid from Joker's lapel flower.
Holly Shancoe - Wife of detective Geoff Shancoe. Coerced by the Joker (claiming to be a doctor) into hanging herself.
Corrections officers - One stabbed in the jugular with a pen, second killed after flying through truck windscreen.
Judge - Allergic to nuts. The Joker flicked a peanut into his water and he went into anathyleptic shock.
Dr. Mackenzie - Slipped on a banana peel and hit her head on a desk corner.
2 Arkham orderlies found slashed in Joker's cell.
[Batman: The Killing Joke]
Amusement park owner - Injected with Joker toxin.
[Batman: A Death In The Family]
8 Arkham staff killed with Joker toxin concocted from cleaning agents in the janitor's closet.
1 US Navy pilot by gunshot.
Jason Todd/Robin - Beaten with a crowbar and blown up in a rigged warehouse.
Shiela Todd - Jason's mother, killed in warehouse explosion along with her son.
Around 10 of the Joker's henchmen killed with Joker toxin.
Unknown number of UN delegates killed with explosives and one suffering a gun shot.
[Legends Of The Dark Knight 65-68: Going Sane]
4 people killed in 'circus' bombing.
[Batman: Knightfall - Broken Bat]
Killed 3 Arkham guards with a shotgun.
Several cops blown up in a booby-trapped amusement park.
Toll booth warden - Killed with an exploding ice cream cone.
Several cops blown up in ice cream van explosion.
Tunnel worker - shot with handgun.
[Batman: The Long Halloween #4]
3 air base ground crew killed with Joker toxin.
[Batman: Secrets]
Deborah Parisi - Parole officer. Shot in the face.
Maria & Hector - Young couple who took a picture of Batman and the Joker fighting. Stabbed repeatedly.
[Batman: No Man's Land]
Street punk - Stabbed in the neck with a fork and sprayed with Joker toxin.
2 members of the Street Demonz gunned down in an old man's house.
Rupert - One of Joker's henchmen. Had a saw blade thrown in his face for dropping a portable TV.
Winston - One of Joker's henchmen. Shot for answering a question.
Construction worker - Struck with a sledgehammer.
At least 3 Blue Boys killed with Joker toxin.
Tricked Bill Petit into shooting 9 of his own men (all dressed up as Joker)
Bill Petit - Shot in the back.
Sarah Essen-Gordon - Shot in the head.
[Infinite Crisis]
The Royal Flush Gang - Queen, Jack, Ace and Ten are seen dead already. King is fried by the Joker's joy buzzer.
Alexander Luthor Jr. - Electrocuted with joy buzzer.
[Superman/Batman - Vengeance]
Batzarro - Shot with a spear gun.
[Legends Of The Dark Knight #200 - Gotham Emergency]
Numerous people killed in Globe Building bombing.
Elapsed body count = 123 (not including unknown-number group killings)
More to come when I feel like it. --Devo DrakeFox 22:34, March 22, 2011 (UTC)