Mark R. Zeszotek (1954-2004) had been a puppet designer and builder for The Jim Henson Company for two decades. He was the Muppet Supervisor for Sesame Street between the years 1995 and 1999, winning four Emmy Awards for his work on the show.
A native of Ohio, Zeszotek was a graduate of Miami University.
- The Muppet Show: On Tour!: assistant to Julie Zobel, design and construction supervision
- The Muppet Show on Tour: 2nd Edition: assistant to Julie Zobel, costume design and construction supervision
- Sesame Street (credited seasons 18-30): Muppet Supervisor (seasons 27-30); designed Sherry Netherland
- Wow, You're a Cartoonist!
- The Muppets at Walt Disney World
- The Muppet Christmas Carol: Muppet Workshop project supervisor, designer/builder
- Muppet Treasure Island: Muppet Workshop project supervisor
- Elmo Saves Christmas
- The Adventures of Elmo in Grouchland: Muppet Workshop NY project supervisor; built Grizzy
- Ulica Sezamkowa: built Beata
While never credited as a puppeteer on the show itself, Zeszotek was credited as such in the following Sesame Street videos: