His real name is Alec Rois. He was born in poverty, grew up alone and unloved, and became a skilled scientist. At Lockleed Aircraft, he created a working teleportation device called the Stealthray. He was going to sell the device to the world, but then he remembered how he grew up without friends and money. So he decided to use the device to benefit himself. With this device, he got pass through any thick and impenetrable object, and he used it get himself a fortune and continue his scientific studies. In fact, Captain Atom and Nightshade were sent to stop him because the government was afraid that he would try stealing top secrets next. Before Crisis on Infinite Earths, he was their nemesis. After that event, he returned as a cult leader of a hidden civilization called Sunuria.
This comic book character provides examples of:
- All of the Other Reindeer: Ghost was shunned by everyone, simply because he was born in poverty.
- Arch-Enemy: To Captain Atom during The Silver Age of Comic Books, as he was the only recurring villain who persistently got away.
- Arc Welding: Happens throughout the DC Comics series, as the Ghost is gradually revealed to be tied up with Wade Eiling's dirty dealings that resulted in Captain Adam being framed while his technology turns out to be related to the "quantum field" that empowers Atom and are related to the technology created by Doctor Megala.
- Expy: In his Charlton Comics incarnation, he bears a strong resemblance to the original Green Goblin, another Steve Ditko creation. Both are corrupt tech industry types whose true identities are unknown to the heroes and the world for their first several appearances, and both use a "supernatural being" motif but are actually technologically based.
- The Dragon: Post-Crisis, to Wade Eiling
- Dragon with an Agenda: He ultimately breaks off on his own and menaces both Captain Atom and his old boss.
- Friendless Background: Ghost didn't have any friends in his life.
- Grand Finale: He's the villain of the 1970s epilogue to the Silver Age series in the Charlton Bullseye, which finally wrapped up the outstanding subplots of the Silver Age series. And he was the villain of the final Greg Weisman storyline of the Post-Crisis version of Captain Atom as well, which similarly tied off most of the major subplots, though the Ghost was not Captain Atom's primary nemesis for most of that run.
- Intangibility: He uses his Stealray in this manner, getting through thick walls and the like.
- Killed Off for Real: He dies in the final Bates-Weisman story, and even turns up as an undead villain in the War of the Gods crossover. And then was briefly seen alive, without explanation, in Underworld Unleashed.
- Legion of Doom: Gathers most of Captain Atom's recurring villains — an admittedly small group — for the final Bates-Weisman story in the Post-Crisis series.
- Put on a Bus: His seeming death in issue #$560 of the Post-Crisis series seems to have stuck, despite his resurrection-by-cameo in Underworld Unleashed, with the net effect that he's not used much anymore.
- Religion of Evil: The Sunurian woman believed the Ghost to be the reincarnation of their evil god called the Faceless One, so they captured him and brought the Ghost to their hidden kingdom to rule it.
- In the Post-Crisis DCU, this is changed to a clt the Ghost himself runs and the Sunurian mythology is just a fabrication.
- Villain Teleportation: A scientist who created a teleporter and used it to turn into a super-villain.