Marian Keating began at the Jim Henson Company in the early 1980s as part of the New York Muppet Workshop foam latex lab. She has created countless Miss Piggy heads over the years as well as other puppet characters. She then moved to the Los Angeles Creature Shop to work on creature effects.
- Fraggle Rock (1983) TV Series (muppet designer)
- The Muppets Take Manhattan (1984) (muppet design and construction)
- Teenage Mutant Ninja Turtles (1990) (costume dresser) (uncredited)
- Aliens in the Family (1996) (Jim Henson's Creature Shop)
- The Phantom (1996) (costumer: Jim Henson's Creature Shop)
- George of the Jungle (1997) (gorilla costumer: Jim Henson's Creature Shop)
- Dr. Dolittle (1998) (puppet builder: Jim Henson's Creature Shop)
- Pajanimals (2008) (puppet wrangler)