The Yellow Wasp was a frequent foe of the original Wildcat in the 1940s. Although his real identity was never revealed, it is supposed that he kidnapped Wildcat's infant son, Jake, and brought him up as his to hate his own father. He also had a biological son, who grew up to become the Killer Wasp of the Injustice Society. According to Killer Wasp, both the older Wasp and Wildcat's son Jake are dead today. The future will probably tell us if these statements are true.
The Yellow Wasp possessed mechanical wings which enabled him to fly, and a wide array of Wasp-based weapons, including stinger guns and a Waspmobile. Some sources claim that he used the name "Golden Wasp" later in his life.