His debut novel was Adventures of the Karaoke King (Lake Union Publishing 2011). His short stories, essays, and plays have featured on NPR, in a New York Times bestselling anthology, in literary journals and podcasts, and in The Seattle Times; his screenplay Dog Park was a 2023 LA LGBTQ+ Film Festival winner.  Harold co-wrote a musical adaptation of Jane Austen’s final novel Persuasion, which had its world premiere at Seattle’s Taproot Theatre, and its California premiere at San Diego’s Lamb’s Players Theatre. He was an inaugural member of The 5th Avenue Theatre Seattle Writers Group, a two-year incubator for new musicals. The original one-act musical he cowrote, The Missed Connections Club, won Third Place in the 2015 Frostburg State University One-Act Competition, was a finalist in the Arts Club of Washington’s 2014 One-Act Play Competition, and was longlisted for the 2015 British Theatre Challenge. Harold He wrote the book and lyrics for In a Better World: A Multiverse Musical, which had a staged reading funded by 4Culture, and the original play C[Y]PHER, which had a staged reading funded by City of Seattle and presented by Infinity Box Theatre Project. C[Y]PHER will have its world premiere produced by Pork Filled Productions in August 2027. 

For five years, he co-curated WordsWest Literary Series, which brought world-class poets and writers to West Seattle's treasured C & P Coffee Company. A Yale Law School graduate and a Fulbright Scholar, Harold’s research and writing have been supported by, among others, City of Seattle's Arts & Culture, 4Culture, 826 Seattle, Artist Trust, Centrum, the Helen Riaboff Whiteley Center, Humanities Washington, Jack Straw Productions, and Wing Luke Museum. 

Harold is the 2027 Curator of the Jack Straw Writers Program, which brings together an annual cohort of 12 writers of diverse backgrounds and writing forms (prose, poetry, and plays) for a year of audio training, live and podcast presentations, an anthology, and fellowship. He is currently writing a young adult novel about reincarnations gone awry and a comedic musical about a Korean adoptee exploring how much she will compromise her artistic voice to see her musical Birth, Suffering, and Death produced off-Broadway.