Rollie Krewson (sometimes credited as Rollin Krewson) interned with the Muppets in the mid-1970s. She has contributed to almost every Henson production since her arrival and to this day carries her skills through Sesame Street.
She has been awarded 7 Emmy Awards for her contributions to Sesame Street and had been nominated many times for her work on other Henson productions. Although she now works primarily as a designer/builder, she began as a performer, doing small bits on The Muppet Show and other projects.
- The Muppet Show: Sex and Violence - Built Heaps and Stalks
- The Muppet Show - Muppet designer/workshop supervisor, built Chuckie, Wayne, Foo-Foo and many others
- Emmet Otter's Jug-Band Christmas - Built Wendell Porcupine
- The Dark Crystal - Creature Design/Fabrication Supervisor: Fizzgig
- Fraggle Rock - Built Wembley, Red, Balsam the Minstrel, and others
- The Muppets Take Manhattan - Muppets' studio coordinator
- The Tale of the Bunny Picnic - Built Twitch and Bean Bunny
- Labyrinth - Creature workshop artist: The Wiseman, Fireys, Goblins
- The Christmas Toy - built Rugby Tiger
- Sesame Street - Built Zoe, Curly Bear, Abby Cadabby, Lulu, Julia and many more; has rebuilt Elmo (since 1988), Ernie and Bert
- The Jim Henson Hour - Built Lindbergh
- Dog City - Muppet Workshop project supervisor
- The Muppet Christmas Carol (1992)
- Muppet Treasure Island
- Plaza Sésamo - Built Lola and Pancho
- Galli Galli Sim Sim - built Aanchoo, Googly, Chamki, etc.
- The Animal Show - Project Supervisor, built Giraffe, Zebra etc.
- Big Bag - Built Chelli
- The Wubbulous World of Dr. Seuss - Built Norval the Fish, Project Supervisor
- The Adventures of Elmo in Grouchland (1999) -(Muppet builder/designer)
- Muppets from Space (1999) - (project supervisor: Muppet workshop) (as Rollie Krewson)
- Sesame Beginnings - Built Baby Elmo and Elmo's Dad
- Sesamstraat - Built Purk
- X•tink•shun - Built Didi the Dodo
- Sesamstrasse - Built Pferd
- Saturday Night Live - Assistant puppeteer
- The Muppet Show: Sex and Violence
- The Muppet Show - Mary Louise (Sandy Duncan episode)
- The Muppets Go to the Movies
- Dark Crystal - Assistant puppeteer (Fizzgig, Kira, Garthim Master)
- Labyrinth - Firey 5 (assistant), shaft of hands, goblins