Rita Moreno (b. 1931) is an actress who was the guest star in Episode 105 of The Muppet Show.
In 1977, she became the ninth performer to win the Triple Crown of Acting. The first was an Academy Award for Best Supporting Actress in West Side Story (1961), later followed by a Tony for Best Featured Actress in The Ritz (1975) and Emmys in 1977 for The Muppet Show and 1978 for The Rockford Files.