Duplicate Boy (Ord Quelu or Quelu Ord of the planet Lallor) is a member of the Heroes of Lallor, which operates in the 30th Century, along with the Legion of Super-Heroes, with whom he has teamed up on occasion. He was romantically involved with Shrinking Violet for many years. When she is kidnapped and replaced by a Durlan impostor who starts a romantic relationship with Colossal Boy, he travels to Earth to beat him up. He then confronts Violet, and sees that she is an imposter, but doesn't mention it to anyone else. When Violet is freed from captivity some time later, she dumps him for this.
- Power Replication: Duplicate Boy can duplicate any superpower he has ever encountered, and is able to duplicate more than one at a time as well. Thus, he is more powerful than every other superhero in the 30th century, including each member of the Legion of Super-Heroes.
- First and last names are interchangeable on his home planet.
- 26 Appearances of Quelu Ord (Pre-Zero Hour)
- 5 Images featuring Quelu Ord (Pre-Zero Hour)
- 1 Quotations by or about Quelu Ord (Pre-Zero Hour)
- Character Gallery: Quelu Ord (Pre-Zero Hour)