Harold Green

 was a Thomas Edison's employee.

At some point in the 1900s, Harold Green had a dinner with his wife and Thomas Edison.

A week later he spied on Nikola Tesla near his laboratory in New York City. When Tesla was reading Mr Morgan's letter, Harrold Green took a photo of him through the window, but was recognized by Dorothy Skerrit. He returned to The Edison Electric Illuminating Company, where he was killed by the Skithra. They later used Harold Green's appearance as a disguise. (TV: Nikola Tesla's Night of Terror)