Jim Henson
No.
The cast of Sesame Street Sports - 2001 includes: Kevin Clash
The cast of Sesame Street in Puerto Rico - 1979 includes: Sonia Manzano as Maria Figueroa
Elmo evolved by several cast members of Sesame Street playing with a discarded red puppet.
Jim Henson
No.
The cast of Sesame Street Sports - 2001 includes: Kevin Clash
The cast of Nightmare on Sesame Street - 2012 includes: Brian Fernandes as Bert
The cast of Five Sesame Street Stories - 1985 includes: Richard Hunt as Storyteller
Sesame Street - 1969 Cast Iron Cooks 42-15 was released on: USA: 11 November 2011
The cast of Sesame Street in Puerto Rico - 1979 includes: Sonia Manzano as Maria Figueroa
Elmo evolved by several cast members of Sesame Street playing with a discarded red puppet.
The cast of Sesame Street Pitch Reel - 1969 includes: Joan Ganz Cooney as herself Brian Henson as himself Gary Owens
Kermit was part of Sesame Street as well as the Muppet Show. When Kermit and Miss Piggy get married in the Muppet Movie, her saide of the church is predominantly Muppet Show cast (including Pigs in Space) while his is mostly from Sesame Street.
While going to college at Carnegie Melon University, she originated the eponymous role of Sonia in the off-Broadway musical Godspell (appearing on its original cast album as well), and continued to play the role through her first season on Sesame Street. She became part of the increasingly ethnically diverse cast and recalled that "It was such a social force... I never wanted to be on a kids' show, but I always wanted to be on Sesame Street." [1]
The Muppets were out as a sub-feature act on various Television shows such as Jimmy Dean, Ed Sullivan, maybe Johnny Carson- in the mid sixties. I do not believe Sesame Street came out before the early seventies- and they were not original cast members, but were worked into the fabric- such as Big Bird.