After getting numerous hideously deformed offspring with women of Gemworld, Dark Opal decided to "adopt" an Earth boy as his charge: Carl Nelligan, or Carnelian as he became known.
He served his father during his evil machinations, even after Dark Opal's death.
After Dark Opal was defeated for a second time, Carnelian sought to change himself. He entered the teachings of his uncle, White Opal, and eventually claimed his place on the throne of Opal, becoming a respected member of the royalty of Gemworld.
- Firearms: Carnelian regularly carried firearms, and was quite proficient with them.
- No Magic: Because of his Earth-bound origin, Carnelian had no magical powers.
- Missing Limb: Carnelian lost his right hand when Granch made his gun explode.
- 25 Appearances of Carl Nelligan (New Earth)
- 4 Images featuring Carl Nelligan (New Earth)
- Quotations by or about Carl Nelligan (New Earth)
- Character Gallery: Carl Nelligan (New Earth)