The character first appeared on-screen during the episode airing on 27 January 1986, when Kevin Webster (Michael Le Vell) drove past her in his van and accidentally splashed her while she was waiting for a bus.
Her notable storylines have seen her have an on-and-off relationship and marriage with Kevin, becoming the victim of domestic violence by Greg Kelly (Stephen Billington) and her attempts to become the pillar of the community and annoy Janice Battersby (Vicky Entwistle) in the process.
Following a second divorce from Kevin, the character embarks on a relationship with Tim Metcalfe (Joe Duttine) and goes on to marry him, survives a minibus crash, begins a political career on the local council and later progresses to become the Mayor, becomes the victim of an internet troll, is wrongfully imprisoned for fraud and is injured when the roof collapses at the factory.
[1] Interviewed for The People's Soap Special, Dynevor spoke about how terrifying her first episode was to film because she had not done any TV work prior to the role and the scene involved one of the show's best known characters, Hilda Ogden (Jean Alexander).
[4] Shortly after Sally's arrival in 1986 she was paired with Kevin Webster portrayed by Michael Le Vell and they then went on to get married and have two daughters Rosie and Sophie.
"[12] In December 2015, it was revealed that producers were lining up a plot which would see Sally team up with her neighbours in a bid to tackle several issues in the area.
[4] Dynevor revealed that she would not vote for Sally in real life due to the character's politics being too similar to those of Theresa May and Margaret Thatcher.
[4] Kevin Webster's van goes through a puddle and splashes pedestrian Sally Seddon, making her furious as she's on her way to a job interview.
Curly has nobody to take to Susan Barlow (Wendy Jane Walker)'s twenty-first so Sally offers to set him up with her friend Lois Fairhurst.
Elsie Seddon (Brenda Elder) tracks Sally down and demands she hand over her dole money so she can buy husband Eddie (James Duggan) beer.
In 1990, Sally gets pregnant and gives birth to a baby girl in the back of Don Brennan's (Geoffrey Hinsliff) taxi on Christmas Eve.
Sally falls pregnant again in 1994 and "Lauren" (Ashleigh Middleton, Emma Woodward, Brooke Vincent) is born in early November.
This makes Kevin feel neglected and begins an affair with his business partner, Natalie Horrocks (Denise Welch).
Angry, Sally gets mechanic Chris Collins (Matthew Marsden) to let her into Natalie's house and promptly floods it.
Sally, looking for something challenging in the employment stakes, takes a job as a personal assistant to prosperous garage owner, Ian Davenport (Philip Bretherton).
In a particularly humorous event, Sally is indignant when Ken Barlow (William Roache) misspells Rosie's name in a review of her school show.
She is unhappy about Rosie dating Craig Harris (Richard Fleeshman), a local lad whose family has a past, (too much like her own).
Sally's emotions and nerves crumble as she takes Rosie on a wild drive across the M62 en route to a boarding school but loses control of the car, almost killing them both.
In 2007, Sally decides to take an A-Level in English literature and has private lessons with John Stape (Graeme Hawley).
This leads to a misunderstanding when Sally gets something in her eye and John tries to remove it just as Fiz and Sean Tully (Antony Cotton) enter the factory.
This is revealed on Christmas Day that year when John accidentally gives Fiz and Rosie the wrong presents.
Molly is initially horrified but later tells him that she is flattered and they begin an affair, first sleeping together when Kevin sneaks away from Sally's birthday party.
They resume the affair in August, agreeing to tell their respective spouses and leave them but Kevin ends things with Molly instead, after learning that Sally has breast cancer.
After a desperate plea from Sophie, Sally allows him to stay for Christmas Day but on New Year's Eve, Kevin accepts he's not wanted and baby Jack is Tyrone's son and leaves alone.
Sally soon finds herself drawn to Frank and makes it clear that she does not believe Carla's claims that he raped her and the pair form a mutual attraction for one another.
A shocked Sally confronted Frank and he admits the affair and that he did rape Carla, warning her not to cross him as the last woman who did 'lived to regret it'.
However, due to recent events, Sally is a suspect but she attends his funeral and is puzzled when Anne (Gwen Taylor), Frank's mother, leaves the crematorium, during the service and visits her.
Name checking Mary Queen of Scots, dishing out incredible one-liners, being the stand-out performer in the live episodes and handling the Sophie/Sian and Kevin/Molly situations perfectly, both actress and character have cemented their place in our collective hearts.
People like Sally tend to miss out on soap awards and suchlike because they’re always there, but maybe, just maybe her recent work will be noticed and she’ll get some acknowledgement in the next lot of gongs.
"[17] A columnist writing for TV Buzz said that Sally does not "give a damn" about what people think of her, because if she did she would have "fled Weatherfield a long time ago".