Ernie is a beloved character on the long-running children's television show Sesame Street. He is a friendly, orange Muppet who loves to play practical jokes on his best friend Bert. Ernie is known for his silly giggle and his love of rubber duckies.' Ernie is one of the most recognizable stars of the iconic children's television show Sesame Street. He is an orange Muppet with a penchant for practical jokes, often played on his best friend Bert. Ernie is also known for his signature giggle and his fondness for rubber duckies.