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CW Upfront Presentation, New York, America - 19 May 2016

Jesse L. Martinis adding another title to his resume: Host.

On Sunday,The Flashstar will launch HLN’sHow It Really Happened with Jesse. L Martin, in which he delves into notorious crimes, mysteries trials, and tragedies.

“My agents, managers came to me and said, ‘Here’s an interesting project,'” Martin, 53, tells PEOPLE. “And I never thought of myself as a host, really, of anything. I rather enjoy being able to hide myself in a character. But this was such a cool project. It became a great, great gig for me.”

Martin, who previously starred onLaw & Orderfor nine seasons, just wrapped up an eight-year run onThe Flashwhere he played detective Joe West. He’s also a four-time Tony Award winner for his stage work. While his latest project is a departure from his long list of acting credits, he was drawn to the content.

Shane Harvey/The CW.

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Martin says he knew from a young age he wanted to be a performer, but he has also long been passionate about design.

“Since I was 11, I remember distinctly saying to myself, ‘I want to be an actor,’ but just before that I wanted to be an architect, which is where I am now,” he explains. “I’m literally building my own house. It’s the first house I ever designed and I’m really enjoying it.”

He’s nearly 70% done with the home and says he can’t wait to finish the project.

“I want the place to be healthy, I want it to breathe, I want it to be a place I go to and really, really recharge in every single way.”

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How It Really Happened with Jesse L. Martinlaunches Sunday at 9 p.m. ET on HLN.

source: people.com