1st appearance of John Henry, later becomes Steel
1st appearance of Superboy, Conner Kent
1st appearance of Cyborg Superman, formerly Hank Henshaw
1st appearance of the Eradicator
Each character was introduced briefly in this issue, then featured in their own individual issues thereafter
1st appearance of Angora Lapin, later becomes White Rabbit
[March 2025 - IMDb credits claim Brey Noelle will depict White Rabbit in Peacemaker S2 but DC has yet to confirm this casting]