The text provides a biographical overview of Steve Mazan, an American stand-up comedian, television writer, and author known for his "clean and clever comedy." The entry highlights his professional achievements, including winning an Emmy Award for writing on The Ellen DeGeneres Show and performing on The Late Show with David Letterman. A significant portion of the text focuses on his personal struggle after a 2005 diagnosis of inoperable metastatic neuroendocrine cancer, which fueled his dream of appearing on Letterman's show. This inspirational journey became the subject of the documentary Dying to do Letterman, which qualified for Academy Award consideration, and an autobiography by Mazan. Furthermore, the text mentions that his experiences were the basis for a TedX speech, and notes a reviewer who called his Letterman appearance "one of the most triumphant moments" during the show’s tenure.