Mister Hyde

Mister Hyde was in reality the monstrous form of the Victorian gentleman named Doctor Jekyll, who transformed into the brutish Mister Hyde, his alternate personality; especially when he was under stress.

It was a serum that the Doctor developed during the 1880s that initially caused him to make the transformation, although over time, he no longer needed the serum.

Earth-1A
Robin once compared the transformation of Matt Hagen into Clayface to the transformation of Jekyll into Hyde. It was then he made the statement: "Holy Jekyll and Hyde!"

Super Powers

 * Transformation


 * Superhuman Senses


 * Superhuman Strength

Abilities

 * Science

Appearances
The New Adventures of Batman
 * Dead Ringers (1977) -- (Mentioned Only)