Karen Prell

Karen Leigh Prell (born July 26, 1959) is an American puppeteer and animator. She is the performer of Red Fraggle in Fraggle Rock. Early life and career Prell was born on July 26, 1959, in Florida but grew up in Seattle, Washington. She also performed some characters in other Jim Henson films and has enjoyed a significant second career as a computer animator for such studios as Pixar and DNA. On Sesame Street, she performed Deena Monster, as well as several background and one-off characters. She performed on the show from 1980–1981 for seasons 11 and 12, then returned in 2019 for season 50. She also performed in the 2003 attraction Sesame Street 4-D Movie Magic. Her website includes notes about working with Jim Henson and pictures of her custom puppets. She was an animator for Geri’s Game and also worked on animation of A Bug's Life and Toy Story 2. Prell also works as an animator with Valve.