Alex O'Loughlin has been the star of the show since day one!

'Hawaii Five-0': This Is "Steve McGarrett's" Story

Alex O'Loughlin

"Steve" from Hawaii Five-0 has been with us since the beginning of the successful crime series. The character is played by Alex O'Loughlin, who became internationally known for his role. Let us guide you through "Steve's" story after ten years on Hawaii Five-0.

Alex O'Loughlin (45) is an Australian actor (with Scottish roots) who became famous because of his leading roles in the shows Moonlight and Hawaii Five-0. For his performance as "Will Bryant" in the Australian mini-series The Incredible Journey of Mary Bryant he was even nominated for a number of film awards.

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Hawaii Five-0: "Steve" has been through a lot

On Hawaii Five-0, "Steve McGarrett" has been starring as the Lieutenant Commander since the very first season in 2010. The leader of the Hawaii Five-0 Task Force is a former Navy SEAL, now in the United States Navy Reserves.

After his mother's supposed death, "Steve" was sent to the United States Naval Academy in California for his junior and senior years and had a distinguished career there. He graduated "BUD/S Class 203" at the top of his class.

From his time in the service, "McGarrett" is actually friends with another former Navy SEAL: Senior Chief Petty Officer "Sam Hanna" (LL Cool J), who we all know from NCIS: Los Angeles.

Alex O'Loughlin has been starring on Hawaii Five-O ever since 2010.

However, most of what happened to him during his time in the military is unknown, as many of his missions are classified as top secret. We DO know that "Steve" was sent to Afghanistan, Iraq, and North Korea.

Hawaii Five-0: "Steve" lost touch with his family

"Steve", played by Alex O'Loughlin, also served aboard a ship called the USS Enterprise. However, his successful career also led to him losing touch with his family for a while.

When "Steve" returned to Hawaii, he moved back into his parents' house. However, both his parents passed away (although his mother "Doris McGarrett", played by Christine Lahti, returned) and the relationship with his sister "Mary McGarrett" (Taryn Manning) remains tense. He rarely or never sees her.