On a special inner city street, the inhabitants—human and muppet—teach preschoolers basic educational and social concepts using comedy, cartoons, games, and songs.

Frank Ozas Bert/Cookie Monster/Grover
Jerry Nelsonas Aloysius Snuffleupagus
Sonia Manzanoas Maria Figueroa Rodriguez
Bob McGrathas Bob Jackson
Roscoe Ormanas Gordon Robinson
Loretta Longas Susan Robinson
Emilio Delgadoas Luis Rodriguez
Richard Hunt
Caroll Spinneyas Big Bird
Fran Brillas Zoe / Prairie Dawn (voice)
Lou Berger
Sonia Manzano
Josh Selig
Luis Santeiro
Molly Boylan
Tony Geiss
Christine Ferraro
Joey Mazzarino
Annie Evans
Jerry Juhl