Mark Harmon and Leon Carroll Jr. Spill Secrets in Explosive Interview on ‘Ghosts of Honolulu’ – Real NCIS Story Revealed!

Ghost of Honolulu” is a groundbreaking book unveiling an untold story from the real-life NCIS, featuring insights from NCIS star Mark Harmon and retired NCIS special agent Leon Carroll Jr., a longtime technical adviser for the series. We’re fortunate to have both Mark and Leon here today to share about this new book. Thank you both for taking the time to talk with us.

Let’s start with you, Mark. NCIS has a rich history that traces back to Pearl Harbor, long before the series we know today. Could you give us a glimpse into the story told in the book?

Mark: Absolutely, Rudy. When I first took on the role, I delved into understanding what NCIS was, a term I wasn’t familiar with at the time. There wasn’t much information available, but luckily, I crossed paths with Leon Carroll 20 years ago. My interest was in meeting the real individuals behind the job portrayed on the show. Over two decades, I gained immense respect for the quiet and challenging work that these professionals do. The book centers around Douglas Wana, the first in what would become NCIS, placed in a specific role during World War II. My involvement is driven by my deep respect for Leon and the bond we’ve shared over the years.

Leon, as a former NCIS agent and technical adviser, what intrigued you about researching and telling this story, particularly comparing the operations of NCIS during Pearl Harbor to modern times?

Leon: Rudy, what fascinated me about Douglas Wana’s story was his role as a Counter Intelligence agent, a field I entered when I joined NCIS. His work closely resembled what I did some 40 years later. Investigating wartime scenarios where lives were at stake, he looked into potential informants aiding the Japanese Imperial military. It was eye-opening to see how investigative and operational methods hadn’t changed much over the years, except for technological advancements. The core principles remained the same.

Mark, could you share a bit about your collaboration with Leon on NCIS and how it led to this joint venture in writing “Ghost of Honolulu”?

Mark: Doug Wana was an unsung hero, and without Leon, I wouldn’t have known about him or his crucial role. Having the opportunity to talk to Leon every day, ask questions, and learn from someone with his experience—both as an NCIS agent and a Marine—was invaluable. This book, for me, is a way of expressing gratitude and preserving the stories of individuals like Leon, who have dedicated their lives to this service.

Leon, being from Chicago, could you tell us a bit about your motivation and journey, growing up, and ultimately finding yourself in a career that led to working on a hit TV series and co-authoring a book?

Leon: Living in Chicago, I never imagined I’d end up working in this industry, alongside someone like Mr. Mark Harmon. It’s living a dream I never thought possible. Coming from the Southside, where going downtown was a rarity, I went on to have an enriching experience at North Dakota State, engaging in football and even participating in ROTC activities. Joining NCIS after six years as an active-duty Marine was an honor, and the opportunity arose by being in the right place at the right time. My wife’s decision to move from Washington State to Los Angeles played a crucial role in this unexpected journey.

Mark, before we wrap up, there’s some buzz about a potential “Freaky Friday” sequel. If it happens, would you be interested?

Mark: Well, that sounds like something Jamie Lee Curtis, who appeared on our show, would be up to. She’s fantastic, and while I can’t speak to that particular project, I’d love to see her back on NCIS at some point. She’s a great talent, and we’re all happy for her success, including her recent Oscar win.

Thank you both so much for sharing insights into “Ghost of Honolulu,” now available in stores. Mark, Leon, it’s been a pleasure talking with you. Thank you, Rudy, for having us.