William Shunn was born in Los Angeles and raised in Utah, the eldest of eight children in a devout Mormon family. A writer from a young age, he attended the Clarion Writers Workshop at Michigan State University in 1985, when he was 17. As was expected, he departed on a proselytizing mission for the LDS Church at the age of 19. He was assigned to preach in Alberta, Canada, but after six months he was convicted of felony mischief in connection with a false bomb threat and expelled from the country. The complete story is recounted in his 2015 memoir, The Accidental Terrorist: Confessions of a Reluctant Missionary.

His short fiction has appeared in Salon, Storyteller, Bloodstone Review, Newtown Literary, Asimov’s Science Fiction, The Magazine of Fantasy & Science Fiction, Science Fiction Age, Realms of Fantasy, Electric Velocipede, and various anthologies, including year’s-best collections. His work has been nominated for the Hugo Award, the Nebula Award, the Theodore Sturgeon Memorial Award, and the Association for Mormon Letters Award.