Countdown to Final Crisis — DC Comics
Issue: #21
Typo on cover incorrectly says "Oct. 5, 2007OverviewKarate Kid meets an all-new/old OMAC at the Command D bunker! Jimmy Olsen crosses paths with Mister Miracle! Mary Marvel is taken to Paradise Island! One of the Rogues becomes a real drag! Things are changing for the Monitors! And…at long last…Ray Palmer!Plus, more DC villains origin backup stories, including The Origin of Granny Goodness by Scot...
First appearances: Nix Uotan
Creators: Mark McKenna, Hi-Fi, Paul Dini, Karl Kerschl, Travis Lanham, Keith Giffen, Keith Giffen, Mike Carlin, Mike Carlin, Mike Carlin, Jamal Igle, Peter Pantazis, Elisabeth V. Gehrlein, Sean McKeever, Scott Beatty
Characters: Harley Quinn, Deadshot, Jason Todd, Granny Goodness, Darkseid, Buddy Blank, Desaad, Brother EYE, Brother EYE, Donna Troy, Firestorm (Rusch), Duplicate Girl, Karate Kid, Bob, Wayne Hobard, Terry McGinnis, Hollis Hobard, Atomic Knight, Trickster (Jesse), Marene Herald
Story arcs: Countdown to Final Crisis