News Lloyd Morrisett, co-creator of ‘Sesame Street,’ dies at 93: ‘He will be sorely missed’ January 24, 2023 Edward Segarra, USA TODAY Comments Off on Lloyd Morrisett, co-creator of ‘Sesame Street,’ dies at 93: ‘He will be sorely missed’ Psychologist Lloyd Morrisett, who co-created the TV series "Sesame Street," has died at the age of 93, Sesame Workshop revealed in a tweet Monday.