Complex sentence: Charles "Chip" Esten (born September 9,1965) is an American comedian, actor and singer known for his appearances on the improvisation show "Whose Line Is It Anyway?".
Split into simpler sentences: Charles "Chip" Esten (born September 9,1965) is an American comedian, actor and singer. He is best known for his appearances on the improvisation show "Whose Line Is It Anyway?".