Heather Haversham (also Huntington) is a fictional character from the British Channel 4 soap opera Brookside, played by Amanda Burton. Heather is one of the show's original characters and debuted on-screen during the first episode broadcast on 2 November 1982. Heather and her husband, Roger Huntington (Rob Spendlove), assume the roles of the show's young professional characters. Portrayed as yuppies, they work in accountancy and prioritise their careers over anything else. Writers characterised Heather ambitious and studious, determined to be a successful accountant. Another theme writers often used in developing Heather was heartbreak via her numerous failed romances. She transformed into an unlucky-in-love character with a failed marriage to Roger and hopeless relationships with Stuart Griffiths (Danny McCarthy), Don Summerhill (Jonathan Barlow) and Tom Curzon (Brian Stephens).

Heather was later partnered with Nicholas Black (Alan Rothwell), an architect with a quirky persona which Heather fell in love with. Writers decided to inflict more trauma on the character by exploring Nick's drug addiction to heroin. The two characters marry but their happiness is short due to Nick's behaviour. Heather initially tolerates Nick's behaviour until he attempts to pressure her into taking heroin. Writers killed Nick off in an overdose story and Burton left the series shortly after. The character's departure story featured Heather leaving abruptly and auctioning off her house and its contents. Burton described her time on the show as "wonderful training" and stated that she "absolutely loved" the fame she achieved via the role. Heather has been praised by critics of the genre for her personality and making accountancy "sexy". However, critic Paula Young writing for Soaps, bemoaned Heather's characterisation stating that she "falls in and out of love like there's no tomorrow."

In 1982, Burton was cast as Heather, one of the original Brookside characters. Burton had limited experience in the television industry, having only appeared on The Rod Hull Show. Heather was Burton's first acting role on television. Burton later told Brian Viner from The Independent that "Suddenly, I had a sense of belonging. Brookside really was like a family. And it gave me so much confidence."

"In 1982, one of the central characters was Heather Haversham, played by Amanda Burton, who introduced the soap viewer to the world of the yuppies."

When the series begins, Heather lives at number nine Brookside Close, alongside her husband, Roger Huntington (Rob Spendlove). She and Roger met while studying at Liverpool University, formed a relationship and stayed in the city. The couple represent the British upper-middle class and young professionals. Heather is Irish and is used to having good finances because her parents run a successful hotel in Northern Ireland. Heather works as an accountant and is characterised as a glamorous female. In the book, Brookside: The Official Companion, show creator Phil Redmond profiled Heather as a "accountancy undergraduate with a smile that could buy her the world." Heather is "ambitious" and studious, wanting to pass her final accountancy exams. Heather loves money and her work to the extent that she brings extra work home to complete in the evenings. Heather and Roger do not plan on beginning a family because Heather realises that she needs to concentrate solely on her career to be successful. Redmond noted that despite this characterisation, Heather "isn't heartless" and perhaps would consider a family of her own in the future. He added that Heather was a "central character" who introduced viewers to the lifestyle yuppies had become accustomed to.

In a character profile published in TVTimes, Heather was described a career woman and together with Roger, they look to improve their social standing. Heather and Roger's home appears like a "Habitat show home" and in line with their long working days, dinner is always served at 8PM. To add authenticity to Heather's lifestyle, producers ensured that Heather has a Citroën 2CV parked in her driveway. Redmond said that the car was "the chic fun mobile loved and polished by young aspiring professionals everywhere." Writers chose to portray Heather as a private person in relation to the other characters on the show. Heather did converse with her neighbours, but they often only see her when she is leaving for work or arriving home.

Writers had no intention of portraying a happy marriage for Heather and Roger. His characterisation as an "immature snob" who "delights in the trappings of professionalism" is a threat to their marriage. Roger often goes away on business trips, which he is able to use as a cover story when he begins an affair with Diane McAllister (Rosy Clayton). Writers were quick to portray Heather as savvy to Roger's infidelity. She notices Roger coming home later and even smells another women's perfume on him. His business trips become longer and Roger's boss Derek Hobbs (Norman Gregory) becomes interested in Heather. He decides to pursue her in Roger's absence, buying her gifts. When Heather discovers that Roger has gone to Birmingham with Diane, she confronts him and throws him out of their home. Heather is upset and goes to stay at her parents hotel. When she returns, she and Roger decide to end their marriage. Heather continues to work at Hamilton-Devereaux and immerses herself in her work. She passes her final exams and to combat evening loneliness, she invites her colleague, Polly to live with her.

In September 1984, Redmond revealed that viewers did not want Roger to return. He noted that Roger was not disliked but the viewers' admiration of Heather had grown. Redmond added "they admire Heather for making a stand as a woman and they don't want her to weaken. Any hint of romance and the letters start rolling in." Writers changed the character's name from Heather Huntington to Heather Haversham, which in the story is her maiden name. They also created a series of new romantic stories for Heather, as she decides to give dating a try. Heather's appearance and status attract two men competing for her affections. She meets Dr. Stuart Griffiths (Danny McCarthy) at a party, but he falls asleep during their first date. Like Heather, he puts his career first. When Heather buys a used Volkswagen Scirocco, she meets car salesman Don Summerhill (Jonathan Barlow). Redmond said that Heather finds Don "intriguing and engaging" and completely different from herself. Heather likes Don and wants to pursue their relationship further. When the pair attempt to have sex, they are interrupted by Don's wife. Heather is branded a "man poacher" and she is "hurt by the fact that she has been deceived." Heather is loath to be hurt again and ends contact with Stuart too.