Emilio Ernest Delgado was an American actor best known for his role as Luis, the Fix-it Shop owner, on the children's television series Sesame Street. He joined the cast of Sesame Street in 1971 and remained until his contract was not renewed, in late 2016, as part of Sesame Workshop's retooling of the series.

Sesame Street's 50th Anniversary Celebration is a 2019 musical television special to celebrate the 50th anniversary of Sesame Street. Hosted by Joseph Gordon-Levitt, the special aired on November 9, 2019, on HBO, followed by a November 17 airing on PBS. It stars the cast and Muppets of Sesame Street, including Kermit the Frog, from the past and present. Many retired cast members and characters reunited on the street for the first time in years since their last appearances. This is the final Sesame Street special to feature long-time Muppet performer Caroll Spinney, who performed Big Bird and Oscar the Grouch for 50 years as well as the cast members Emilio Delgado and Bob McGrath, who played Luis and Bob, respectively, for 45 years.