Spencer Lott is a puppeteer who has worked on various Sesame Street projects since 2014. He was an uncredited assistant on select Season 46 episodes, credited as an assistant/additional Muppet performer on the special Once Upon a Sesame Street Christmas, and operated Telly's right hand for a Mashable video. His first speaking role was as the letter K in a video for Sesame Street in Communities. Lott received his first on-screen credit on Sesame Street as a Muppet performer in Season 49. In 2019, he garnered a further speaking role as Samuel, Julia's older brother.