Robert Osterman (Earth-1827)

Dr. Robert "Bob" Nathan Osterman is an American physicist and one of the greatest genius of his time, who helped the Allies develop the Manhattan Project. However, as the result of an accident he suffered while trying to develop the nuclear bomb, Osterman's DNA was severely mutated, turning him into the monstrous Mr. Hyde whenever he becomes nervous.

Early life
Robert Nathan Osterman was born on August 6th, 1917, in Virginia, in the United States, as the only child of two parents. His father was very abusive towards his mother, and would beat her constantly in front of the child.

He grew disturbed by these events, and an undesirable rage to avenge his mother by mercilessly beating his father to submission. Because he felt afraid in doing so, his mother was killed by his father, who disappeared from his homecity, never to be seen again.

The Beauty
Bob was adopted by a single woman, and he grew to become a brillant scientist. At age 16 he moved to Gotham City, where he attended the Empire State University, in the same class as Peyton Westlake, and the two became friends. Osterman's leaping studies in science and biology caught the attention of General Chester Rock, a veteran of World War I and one of the leaders of the Strategic Scientific Reserve; in 1939, Bob was recruited by Rock to be a part of the top-secret Manhattan Project, an Allied initiative to create a weapon of mass destruction that could turn the tide in the war. He accepted, under the condition his weapon would never be used again.

During this time, he met and married Meredith Ahern, and they planned to marry once the war was over. Little did they know, this time would never come.

The Beast
In September 2nd, 1942, Osterman was accidentally locked in a research bunker at Project Manhattan's base, and was struck by experimental nuclear energy whilst using no protection. The resulting explosion transformed him into a raging beast of rage, who escaped from the base and rampaged Gotham.

For the next two weeks he wondered the streets, hiding from police forces and trying to understood what happened. He was eventually approached by Dr. Howard Stark, who informed him about the "unknown effects" resulting from the explosion, leading to Robert collapse in pain. He willingly gave himself up to the SSR, who kept him locked for three days in a special cell. Once Meredith discovered what happened to him she abandoned the scientist, and he felt dead.

Personality
"While Peyton and Fries save the world with their intelligence, I am reduced to a mindless, violent creature. How disappointing."

- - Mr. Hyde

Robert Osterman is a mild-mannered, eloquent man who thinks too much for his own good. His intelligence is only matched by his awkwardness in front of others. As Mr. Hyde, Osterman is unusually aggressive and filled with anger, most of which he endured during his early life as a psychologically abused child.