Other than the shells of the Appellaxian invaders, the Hall of Justice trophy room also houses many items recognizable from the comics:
- Costumes of Guardian, Firebrand, Wildcat, Green Lantern (Alan Scott), Red Torpedo, Flash (Jay Garrick) and Sandman.
- The Amazo android.
- The Star Diamond from Justice League of America #4.
- Kanjar Ro's Slave Ship of Space from Justice League of America #3.
- The Green Bell of Uthool, the Silver Wheel of Nyorlath and the Red Jar of Calythos from Justice League of America #10.
- The Key's Key Gun from Justice League of America #41.
- Libra's scale staff from Justice League of America #111.
- The Gamma Gong from Justice League of America #4.
- Doctor Light's refractor from Justice League of America #12.
Wonder Woman mentions Icon has experience with intergalactic tribunals. In the comics, he defended Earth in front of the Terminian court, who considered it so uncivilized it warranted destruction.
Appearances of Arc #16: the 2nd date shown is January 6th, or 1/6 (16); multiple mentions of the JLA's "missing 16 hours".
The events depicted occur on January 5th, 6th, and 26th.