Breed: Great Dane, although some sources say he's a German Shepherd.
Original Appearances: “Doll Man” comics stories, beginning with Doll Man #31 (1950).
Other Appearances: Unknown
Biography: Elmo was apparently an occasional assistant to the original Doll Man, who would ride him like a horse.
Group Affiliation: Outside of his partnership with Doll Man, none
Miscellaneous: Apparently, when the Doll Man was revived at DC as a member of the Freedom Fighters, there was no further mention of Elmo!