Roderick Kingsley

When a small time crook would accidently find the hideout of the Green Goblin under an Osborn Chemical plant, he sold that information to a mystery man with an interest in conquering the criminal underworld. By changing the Goblin's costume, the mystery man became the Hobgoblin.
He immediately tried to take out Spider-Man. He failed miserably. He wondered how a mere business man like Osborn could sustain many close fights with Spider-Man, so he assumed that Osborn had some sort of powers which he may have gained. So he started raiding some Osborn plants or hideouts, and he found one piece of information. He made his own version of the formula, but instead of testing it on himself, he used it on a crook named Arnold 'Lefty' Donovan firstly. Donovan would dress-up as the Hobgoblin and fight Spidey. Kingsley, fearing that Donovan might tell Spidey of his scret identity, killed "Lefty". It was time for Kingsley to take the formula himself.

Kingsley took just enough so it won't make him mad like it did to Osborn. With his new found powers, he still failed to beat Spider-Man, but he faired better this time than he did in the first encounter. Around this time, the Hobgoblin had an assitant in Roderick Kingsley (a rich businessman who owns the modeling firm Kingsley Limited).
In a meeting of all of NY's elite and most recognized business men (JJJ, Harry Osborn, Roderick Kingsley, Wilson Fisk among others), the Hobgoblin would hold them in captivity and attempt to blackmail them all. With the files of Norman Osborn, the Hobgoblin was able to uncover some dirty secrets from each of those men. Then, Spidey would intervene and would battle him all the way to the Hudson River, where while swimming there, Spidey finds the Hobgoblin mask floating around but he doesn't find a body.
The villain managed to get out of the water and hide among the homeless. While going to a hide-out, Hobby found out that he was being followed by Daily Bugle reporter Ned Leeds. He then brainwashed Leeds into thinking that he was the Hobgoblin and even adopt the identity once in a while. From there, Hobby would use Leeds's friendship with Richard Fisk (the villain known as the Rose) so he can ally himself with the Rose in order to overthrow the Kingpin as the main crime-lord of NY. The Rose had Roderick Kingsley and Captain Keating (a police captain) as allies.
When the Hobgoblin captures Sha Shan, Flash Thompson's girlfriend, out of pure luck, she is taken to the hospital. There, Flash gives his comments about the Hobgoblin on TV, he tells the public that the villain is a coward. Hobby, watching this on TV, gets furious and decides to frame Thompson. A few hours later, the villain would fight Spidey, there Hobby would put a Hobby costume on an unconcsious Flash and have him arrested by Spider-Man. The plan worked.
By that time, Hobby was bored from crime and he decided to retire and move to Europe. When he found out that the Jack 'O Lantern (Jason Macendale) wanted to kill the Hobgoblin, he figured that the time was right to kill off Ned. Hobby gave information that Ned needed as a reporter to complete a story, so Ned would be sent to Germany and Hobby would have leaked Ned's "double life" to some men like the Kingpin. This information fell into the hands of Macendale. Macendale would have Ned killed for revenge.
Right after Ned's death, the Rose sent some of his men to kill Captain Keating and Roderick Kingsley. Keating died but Kingsley wasn't hurt badly. Hobby went to Europe, and didn't even think to become the villain until the day of the Macendale trial. You see, Spidey finally captured him, he was put on trial. Macendale, right after being sentenced for life in prison, mentioned to the press that he had Ned Leeds, who he thought was the original Hobgoblin, killed. This was the first time that Leeds' involvement as the Hobgoblin was made public knowledge. This infuriated Roderick. He decided to, first of all, kill Macendale. From there, Hobby got help from his old friend Roderick Kingsley who reluctantly helped the villain. The villain would kidnap Betty Brant, but Spidey would save her as usual. Spidey caught Hobby and unmasked him; it was Roderick Kingsley) ! Betty then uncovered that the Roderick Kingsley that was in the same room was none other than Daniel Kingsley, Roderick's identical twin brother.
We found out that Roderick used Daniel to participate in some formal events in order not to be suspected as the Hobgoblin. Roderick Kingsley was taken to the Vault.
When he found out that Norman Osborn was still alive, he coaxed his way out of prison, claiming that he had proof that Osborn is GG. Osborn and his new GG kidnapped Kingsley. When Osborn found out that Kingsley was lying about having the proof, he managed to amalgamate Kingsley Limited with Osborn Industries. When all three villains had managed to capture Spider-Man, Osborn and Kinglsey got into a fight, in which Spidey managed to get away. A fire broke out, and everyone got away. Osborn and his new GG escaped, while keeping Osborn's reputation in tact, and Kingsley escaped to a Caribbean Island, where he has "retired" once again.