Elmo was a stray dog, rescued by scientist Darrel Dane, who was secretly the superhero known as Doll Man. The sickly, starving dog was taken in by Dane and exposed to an experimental ray device, which massively enhanced Elmo's strength, size, vitality, and intellect. The dog seemed to understand spoken English perfectly, and was capable of planning, and even trickery. Elmo soon became Doll Man's partner in his war on crime. 
- This version of Elmo the Wonder Dog, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- Elmo appeared in Doll Man from #31 until #40.
- 9 Appearances of Elmo the Dog (Quality Universe)
- 1 Images featuring Elmo the Dog (Quality Universe)
- Quotations by or about Elmo the Dog (Quality Universe)
- Character Gallery: Elmo the Dog (Quality Universe)