Appearing in “The Man From the Phantom Zone!”
Superman releases Phantom Zone prisoner Ak-Var after his thirty year sentence has expired. Ak-Var is then sent to Kandor where most of society shuns him for his criminal past. Three members of his old gang remember him, but they are much older now since Ak-Var did not age while in the Phantom Zone. Soon Ak-Var’s former associates exhibit super powers and commit robberies. Ak-Var claims that he is innocent, but his former friends frame him. Superman returns to Kandor and helps Ak-Var clear his name by exposing the real crooks. He also explains that the super powers were the result of Ak-Var’s exposure to Red Kryptonite, which caused him to transfer powers to other people.
After his name is cleared Ak-Var becomes Van Zee’s lab assistant.