Luanne Platter in "King of the Hill" was a significant character who was Peggy Hill's niece and was taken in by the Hill family. Over the original series, she evolved from a somewhat clueless teenager into a mom and wife, marrying Lucky Kleinschmidt and having a daughter named Gracie. However, in the "King of the Hill" revival (season 14) streaming on Hulu, Luanne does not appear at all, nor is she mentioned. This absence is due to the death of Brittany Murphy, the actress who voiced Luanne, in 2009. The show's creators chose not to recast her character out of respect for Murphy's memory. The revival also excludes her husband Lucky and does not provide any update or closure about their characters or their daughter Gracie. The creators decided to "retire" these characters, essentially preserving the memories and legacy associated with them without continuing their storylines in the new season. The absence leaves the fate of Luanne and Lucky open-ended, with an implication that they might have moved away from Arlen, but no concrete explanation is given in the show. This decision was made to honor the original actors and avoid replacing beloved voices, even though it leaves some fans without closure on what happened to these characters after the original series ended. In summary, Luanne was not featured in the revival due to the passing of Brittany Murphy, and the showrunners chose to keep her story respectfully unresolved rather than recast or elaborate further on her fate. Fans are left to imagine what became of her and her family beyond what was shown in the original series. Her last major storyline was the birth of her daughter Gracie in season 13 of the original show.