The Season 8 episode, "The Millennium," is like many episodes of "Seinfeld" in that it revolves around an obsession over something deeply unimportant — the now-dated and obsolete technology of speed dial — as well as exploring the old fairy tale trope of wicked stepmothers.
In the episode, Jerry is thrilled when he gets the #1 speed-dial slot on the phone of his new girlfriend, Valerie. As happy as this tiny thing makes Jerry, it deeply upsets Valerie's stepmother, identified only as Mrs. Hamilton, so much so that he confronts Jerry in his car and tells him to back off of Valerie, or at least her phone. Her competitive fire ignited, she tries to seduce and manipulate Jerry, and she wins the speed dial top spot, with Valerie secretly relegating Jerry's number to the poison control center's button — which Mrs. Hamilton calls when she eats salsa inadvertently compromised by Kramer.
Apart from her villainous turn in "Seinfeld," Louan Gideon is probably best known for her long stint in the daytime soap opera "Search for Tomorrow," and as evil chemical company CEO Danielle Atron on Nickelodeon's "The Secret World of Alex Mack. In the 2000s, Gideon moved to Asheville, North Carolina, to pursue writing and a career in real estate, according to the Citizen Times. In 2009, Gideon's breast cancer was declared in remission, only for the disease to aggressively return in February 2014. Gideon died at age 58.
