Loretta Swit (1937-2025) was an actress best known for playing Margaret "Hot Lips" Houlihan on the TV show M*A*S*H from 1972 to 1983.
She guest starred on The Muppet Show in episode 502 where she played up her M*A*S*H character in a Veterinarian's Hospital sketch while Miss Piggy later stands in for the role after Swit takes Piggy's place during Pigs in Space.
Swit's film work includes Deadhead Miles (with Alan Arkin), S.O.B. (with Julie Andrews), and Freebie and the Bean (with Valerie Harper), and she played the original Cagney in the TV pilot for Cagney & Lacey (opposite Tyne Daly as Lacey). Her other TV credits include Hawaii Five-O, Mission: Impossible, Gunsmoke, Bonanza, The Love Boat, Murder, She Wrote, and the television broadcast version of It's a Bird... It's a Plane... It's Superman (assuming the role originated on stage by Linda Lavin).