Karen Leigh Prell (born July 26, 1959) is an American puppeteer and animator. She is the performer of Red Fraggle in Fraggle Rock.

Filmography

• 2025The First Snow of Fraggle Rock — Red Fraggle / Icy Joe (voice), Co-Executive Producer
• Fraggle Rock: Back to the Rock — Red Fraggle (voice), Co-Executive Producer
• 2022Jerry Nelson: A Celebratory Birthday Animatic — Red (voice) / Great Grandmother Bunny (voice)
• Fraggle Rock: Rock On! — Red Fraggle (voice)
• 2018The Muppets Take The O2 — Additional Muppet Performer (voice)
• 2011The Muppets — Additional Muppet Performer (voice)
• 2005Fraggle Rock: Dance Your Cares Away — Red Fraggle (voice)
• 2004The Stepford Wives — Animation
• 2000For the Birds — Animation
• 1999Toy Story 2 — Animation
• 1998A Bug's Life — Animation
• 1997Geri's Game — Animation
• Jim Henson's Animal Show with Stinky and Jake
• 1992The Muppet Christmas Carol — Daughter Mouse / Ghost of Christmas Past (performer) / Additional Muppet Performer (voice)
• 1990Jim Henson's Memorial Service
• Mother Goose Stories — (puppeteer)
• 1990Sesame Street: Sing Yourself Silly! — (archive footage) (voice)
• The Ghost of Faffner Hall — Mimi
• 1987A Muppet Family Christmas — Red Fraggle / Maureen the Mink (voice)
• 1987Down at Fraggle Rock — Red Fraggle / Self
• 1986Fraggles Look For Jobs — Red (voice)
• 1986Labyrinth — The Worm / The Junk Lady / Firey 2
• 1986The Tale of the Bunny Picnic — Great Grandmother / Babble / Baby Bunny (voice)
• 1985Fraggle Rock: Scared Silly — Red Fraggle (Voice)
• 1984The Bells of Fraggle Rock — Red Fraggle (voice)
• 1984The Muppets Take Manhattan — Yolanda the Rat / Frank the Dog / Helpful Woman in Park (voice)
• Fraggle Rock — Red Fraggle / Balsam the Minstrel / Wingnut Doozer / Judge Gaval Fraggle / Marly Fraggle / Gorg's Killer Souffle / Wingnut Fraggle / Fluffinella / Modem Doozer / The Beast / Baby Tree Creature (voice)
• 1983Fraggle Rock: Live by the Rule of the Rock — Red Fraggle/ Wingnut Doozer (voice)
• 1983Rocky Mountain Holiday with John Denver and the Muppets — Additional Muppet Performer
• 1982The Fantastic Miss Piggy Show — Additional Muppet Performer
• The Muppet Show — Additional Muppets (voice)

Appearances as themselves (3)

• 2007Journey Through the Labyrinth — Self
• 1994The World of Jim Henson — Self (archive footage)
• The George Lucas Talk Show: Live — Self