Isaac Heller is a supporting character on Once Upon a Time. A troubled man with a warped sense of entitlement, Isaac was a struggling writer getting by on television sales, until a meeting with a "publisher" changed his life forever and he became the new Author - the latest in a long line of sacred scribes who were tasked with recording the greatest stories of all time for posterity. However, he abused his power and used it to manipulate stories as he saw fit, preferring it when villains are the ones who win. After teaming up with Rumplestiltskin in Storybrooke, he lost his position by writing his own happy ending, and ended up imprisoned at the hands of the people he set out to punish.