Karen Leigh Prell (b. July 31) is a puppeteer and animator. Born in Florida, she first worked with Jim Henson in 1979 in small roles on Sesame Street. She subsequently worked on the final season of The Muppet Show, assisting and playing various bit parts (such as the title character in "Rockin' Robin.") She also performed Deena and others on Sesame Street in the early '80s, but made her greatest contribution performing Red Fraggle on Fraggle Rock.