Adam Horowitz

Adam Horowitz Bio

Adam Horowitz, born December 4, 1971, is an American screenwriter and producer recognized for shaping some of the most memorable scripted television of the past two decades. Working almost exclusively alongside his longtime collaborator Edward Kitsis, Horowitz helped steer the sprawling mythology of the ABC drama Lost and later co-created the network’s fantasy hit Once Upon a Time. His scripts have spanned survival mysteries, fairy-tale retellings, and science-fiction adventures, establishing him as one of the more reliable showrunner voices in contemporary network drama.

Based in Los Angeles, Horowitz continues to develop new projects for broadcast and streaming audiences. Over the course of his career he has earned Writers Guild recognition for dramatic writing and signed overall deals with major studios, reflecting the trust placed in his storytelling instincts.

Early Life and Background

Adam Horowitz was born in New York City, New York, in the United States. Growing up in that cultural capital exposed him to a wide range of storytelling traditions, from stage productions to network television, during a period when New York remained a center for American journalism and the arts. He completed his secondary education at Hunter College High School, graduating in 1990, and went on to attend the University of Wisconsin–Madison.

At the University of Wisconsin–Madison, Horowitz pursued a Bachelor of Arts, majoring in communication arts and political science, and graduated in 1994. It was on that Midwestern campus that he met Edward Kitsis, the future writing partner who would join him on every major project that followed. The pair bonded over a shared taste for genre storytelling and a willingness to spend long nights working on scripts together.

While still an undergraduate, Horowitz joined the staff of the Daily Cardinal student newspaper, where he served as a writer and reporter. He was prolific, sometimes placing as many as five articles in a single issue, and he developed a reputation for crafting humorous leads and unearthing unusual quotes. His reporting covered subjects ranging from spearfishing to the lingering environmental impact of the Exxon Valdez oil spill, sharpening the discipline he would later bring to scene construction and dialogue.

Path to Becoming a Screenwriter

Shortly after receiving his degree, Horowitz and Kitsis made the cross-country move to Los Angeles to pursue careers in television writing. Their early assignments placed them on three very different productions: the romantic comedy-drama Felicity, the satirical teen series Popular, and the reimagined Fantasy Island update. Those gigs demanded speed, versatility, and a firm grasp of network notes, and they provided the foundation on which the partners would build their reputation.

The break that would define their careers arrived when the duo joined the writing staff of Lost midway through its first season. The serialized drama, created by J. J. Abrams, Damon Lindelof, and Jeffrey Lieber, asked its writers to manage mythology, science fiction, and deeply human character studies at the same time. Horowitz and Kitsis contributed to that balancing act and rose quickly within the room.

The partnership formed at Wisconsin became the engine of their professional lives. By the time Lost concluded, Horowitz and Kitsis had developed the kind of shorthand trusted by network executives, allowing them to move fluidly between genres while keeping a consistent voice across scripts, pilots, and franchise extensions.

Adam Horowitz Career

Early Career (1994–2003)

After leaving Madison in 1994, Horowitz began his professional path as a working writer in Los Angeles, taking freelance and staff assignments while learning the rhythms of network television. His earliest credits included time on Fantasy Island, Felicity, and Popular, three shows that exposed him to comedy, drama, and serialized storytelling in quick succession.

During this stretch, Horowitz and Kitsis also wrote Confessions of an American Bride, a made-for-television movie that allowed them to experiment with feature-length structure. The work caught the attention of producers building the writing team for a new high-concept drama on ABC, leading directly to their next opportunity.

Breakthrough (2004–2010)

The breakthrough came with Lost, the ABC drama that premiered in 2004 and quickly became a defining series of the era. Horowitz and Kitsis joined the staff halfway through the first season, contributing scripts that helped shape the show’s serialized mythology and earned peer recognition within the writing community.

At the February 2006 ceremony, Horowitz, Kitsis, and the Lost writing staff won the Writers Guild of America Award for Best Dramatic Series, honoring their work on the first and second seasons. The same team was nominated for the WGA Award for Best Dramatic Series at the February 2007 ceremony for the second and third seasons, again at the February 2009 ceremony for the fourth season, and once more at the February 2010 ceremony for the fifth season. The repeated recognition underscored the consistency of the show’s dramatic writing across multiple seasons.

During Lost’s run, Horowitz signed an overall deal with ABC Studios in 2007, signaling the studio’s confidence in his ability to develop new material. He and Kitsis also stepped into feature work, co-writing the 2010 science-fiction film Tron: Legacy for Walt Disney Pictures. The screenplay expanded the Tron universe and demonstrated that the pair could translate their television sensibility to the demands of a large-scale studio production.

Notable Works and Milestones

Horowitz’s signature work remains his collaboration with Edward Kitsis on Lost and Once Upon a Time, two series that helped redefine network genre drama in the 2000s and early 2010s. The 2006 WGA Award for Best Dramatic Series stands as the most prominent trophy of his career, while the 2010 Tron: Legacy screenplay confirmed his reach beyond the small screen.

Adam Horowitz Award Nominations

Adam Horowitz has received multiple Writers Guild of America nominations across his television career, primarily in recognition of his work on Lost. Following his team’s 2006 win, Horowitz and the writing staff were nominated for the WGA Award for Best Dramatic Series at the February 2007 ceremony for their work on the second and third seasons. They received another nomination at the February 2009 ceremony for the fourth season and again at the February 2010 ceremony for the fifth season. These nominations reflect sustained peer respect for the dramatic writing on a long-running serialized series.

Adam Horowitz Awards Won

Adam Horowitz has won the Writers Guild of America Award for Best Dramatic Series as part of the Lost writing staff. The award was presented at the February 2006 ceremony, honoring the team’s work on the first and second seasons of the ABC drama. The victory marked a high point in his early career and remains one of the most significant honors of his professional life.

Adam Horowitz Family

Adam Horowitz is married to Erin Barrett Horowitz, his spouse and partner. The couple has been based in Los Angeles while Horowitz built his career in network television. There is limited public information available about his parents or extended family, and details beyond his marriage have not been widely documented.

Personal Life

Horowitz lives and works in Los Angeles, where he has spent the bulk of his professional life. He frequently collaborates with a tightly knit group of film professionals that includes J. J. Abrams, Damon Lindelof, Alex Kurtzman, Roberto Orci, Edward Kitsis, Andre Nemec, Josh Appelbaum, Jeff Pinkner, and Bryan Burk. That network of colleagues has shaped much of his career and remains central to the projects he continues to develop.