Amazo is a robot super-villain created by Gardner Fox and Mike Sekowsky. He originally appeared in The Brave and the Bold #30 in July, 1960. The comic version of Amazo is more human in appearance with a widows' peak skullcap, and an outrageous plunging neckline.
In the comics, the creator of Amazo is named Professor Anthony Ivo. In this episode, his name is changed to Arthur Ivo. The character is dead as per this episode in the DC Animated Universe, but is still alive in the comic book continuity.
Lex Luthor's battle armor first appeared in Action Comics #544 in June, 1983. Originally, Luthor discovered the armor on an alien world. In more modern retellings, Luthor created the armor as a prototype device at LexCorp.