Nicholas Hammond
There have been a few actors that have played Spiderman and Nicholas Hammond was the first. Hammond was born on May 15, 1950 and appeared in his first film, Lord of the Flies, at age 10. In 1965, he was chosen to play one of the Von Trapp children (Friedrich) in The Sound of Music, starring Julie Andrews. When filming for The Sound of Music started, Hammond was 5 foot 3 inches tall. By the end of filming he was 5 foot, 9 inches tall!! He also played the boy (Doug Simpson) who loses interest in Marcia Brady after her accident with the football.
Hammond was cast as Peter Parker from 1977 to 1979. A stunt double was used to shoot Spiderman when he was in costume. After the cancellation of the series, Hammond was asked to appear in a mini-series in Australia. He moved there in the mid-1980s and has been living there ever since. He has appeared in a number of Australian mini-series and television programs.
Here is a clip of the opening of Spiderman:

Thanks for the update on this one. I alway’s wondered what happened to this show. I was nine when this show aired. Seeing that opening scene brings me back. Bravo