Watts family
When "EastEnders" began in 1985, the soap focused primarily around the affairs of three families: the Beales, Fowlers, and Watts. However, much of the show's early success stemmed from the drama surrounding the Watts, especially the antics of Den, who as owners of the Queen Vic pub (the show's most prominent set) were usually in the limelight. This prominence, at a time when "EastEnders" was at its most prolific in terms of both the media and audience, meant the Watts became perhaps "EastEnders" most eminent family and the characters known even to those who did not watch the show. Such was their success that producers went ahead with an experimental episode format centring on just Den and Angie, during which Angie lied about having cancer; so successful was the airing that it has since been repeated, and the format expanded to include "three" and "four-handers" (between 3 and 4 characters). Such episodes are highly prestigious and feature only the most popular and prominent characters in the show; thus, all the Watts, aside from Vicki, have featured in such episodes.
Bill Treacher
In late 1984, he was the first actor to be cast in the BBC soap opera "EastEnders", appearing in the first episode on 19 February 1985 as Arthur Fowler, a role he played for the next 11 years. In fact the co-creators, Tony Holland and Julia Smith, had scripted the character with Treacher in mind. Treacher admitted in 2015 that he was initially reluctant to sign up for the show as it meant long hours and a sizeable commute to his family home in Suffolk but that he relented due to the chance of a steady income. He received much critical acclaim for the role, especially for his portrayal of his character's mental decline and subsequent nervous breakdown. The character also endured a succession of misfortunes, which included two short spells in prison, a persistent struggle with unemployment, his daughter Michelle's pregnancy at the age of 16, his son Mark's diagnosis with HIV, and a midlife crisis where he had an affair which almost broke up his marriage.