Heather Webber is a fictional character and currently the main antagonist from General Hospital, an American soap opera on the ABC network. The character was first introduced in the summer of 1976. Though played by several actresses, soap veteran Robin Mattson, who stepped into the role in 1980, is most known for her portrayal of Heather until 2016. In October 2022, Alley Mills assumed the role. Mattson received three Soapy Awards as Best Villainess for the role and a nomination as Outstanding Supporting Actress in a Drama Series for a Daytime Emmy Award in 1983. Casting Georganne LaPiere originated the role of Heather Grant on July 29, 1976. In August 1977, it was reported that after a year with the series, instead of renewing her initial 48-week contract, LaPiere vacated the role of Heather to try to become a movie star like her half-sister Cher. She was quickly replaced by Mary O'Brien in September 1977. O'Brien vacated the role in July 1979 when Heather overdosed on LSD. O'Brien was offered the chance to reprise the role in 1980 but refused. On October 1, 1980, Robin Mattson, known for her role as Hope Bauer on Guiding Light joined the cast as Heather Webber. Mattson departed from the series indefinitely on September 13, 1983. Mattson reprised the role for a brief six-month stint which started on June 25, 2004, and concluded on December 3, 2004. In February 2012, it was announced Mattson would again reprise the role, and made her onscreen return on April 2, 2012. After some speculation Mattson might be done with the show, she was again seen on-screen in September 2012, making sporadic returns as Heather's various storyline arcs dictated over the next year and a half. In October 2014, Mattson reprised her role as Heather again, airing into early 2015. In 2016, Mattson reprised her role as Heather on May 11, 2016, July 1, 2016, July 25, 2016, August 26 to 29, 2016, September 27, 2016, October 18, 2016 and on December 21, 2016. In October 2022, Soap Opera Digest broke the news that Alley Mills, recognized for her role on The Bold and The Beautiful as Pamela Douglas, had joined the cast of General Hospital in a mysterious role. Mills appeared on October 28 as Heather Webber. Mattson disclosed she was unable to reprise the role due to medical reasons. Storylines 1976–1983 The 19-year-old Heather Grant is