On the episode, Nina introduces her brother and his husband, played by Chris Costa and Alex Weisman, as well as their daughter, played by Olivia Perez, to Elmo and his friends as they celebrate Family Day. The milestone for the show comes during Pride Month, which Alan Muraoka, known as Alan on “Sesame Street,” acknowledged in a Facebook post. “Sesame Street has always been a welcoming place of diversity and inclusion. So I’m so excited to introduce Nina’s Brother Dave, his husband Frank, and their daughter Mia to our sunny street,” Muraoka, who co-directed the episode, wrote. “Love is love, and we are so happy to add this special family to our Sesame family.”