Cordova will play Armando, or "Mando," one of the non-felt residents of "Sesame Street." His character is a writer from Puerto Rico who will join the other Latino residents, Maria and Luis, as well as the Spanish-speaking Muppets Rosita and Ovejita.
The new season of "Sesame Street" is expected to have a special focus on Hispanic heritage.
The search for a new cast member began with "Sesame Street's" first-ever open casting call in August 2012 in New York City.
Video of the auditioning process was released as a series of mini-docs on "Sesame Street's" YouTube channel. They even included footage of Cordova's first visit to the set, which prompted a giddy cackle and the words "This is amazing."
"Like his character 'Mando,' Ismael represents a culturally fluid and deeply layered new generation of Hispanic-Americans," "Sesame Street's" executive producer, Carol-Lynn Parente, said in a statement.
The new season of "Sesame Street" premieres Sept. 16.