His debut novel was Adventures of the Karaoke King. His writing has been featured on NPR, in a New York Times bestselling anthology, and in The Seattle Times; his screenplay Dog Park has garnered recognition in domestic and international film festivals and competitions. 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 is currently developing In a Better World: A Multiverse Musical, in which the protagonist traverses three alternative histories of 1920s England—as French vassal, Chinese protectorate, and steampunk island—in search of a place where he and his true love won't be separated by race, class, and sexual inequality. 

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. He is currently writing a young adult novel about reincarnations gone awry, a play about a daughter’s memories decrypting her father’s digital afterlife, and a musical about a Korean adoptee discovering how much she will compromise her artistic voice to see her musical Birth, Suffering, and Death produced off-Broadway.