|Written by||Jeff Moss|
Marylou's relatives include a sister who loves to run and play tag (voiced by Fran Brill), a mom and dad who don't always agree (Brill and Jerry Nelson), a grandma and grandpa who give Marylou bags of jellybeans (Nelson and Jeff Moss), and her dog Roscoe (Nelson).
- Numbers! (1977)
- Six/My Sister, My Father, My Mother, My Grandma, My Grandpa, My Dog and Me (single, 1977)
- Sesame Street Treasury (1980)