Lieutenant Commander Steve McGarrett is the heart and engine of Hawaii Five-0, a decorated Navy SEAL who comes back to Oahu to bury his father and stays to solve his murder. Granted full immunity and means by the governor, he builds a task force from scratch and runs it like a special-ops unit, charging into danger first and asking questions later.
Beneath the tactical bravado is a man haunted by family secrets, a missing mother, and a complicated history with the criminal underworld that took his dad. Across the seasons he wrestles with trust, loss, and the slow process of letting people in, softening just enough to treat his teammates as the family he never thought he would have again.
By the finale McGarrett has carried the weight of countless cases and personal scars, and he finally allows himself to step back and seek peace. His decade-long journey from grief-stricken loner to devoted leader gives the series its emotional spine.
Key Episodes
S1 E1
Pilot
McGarrett returns to Hawaii after his father's murder, accepts the governor's offer to lead a task force, and reluctantly recruits Danny Williams as his partner.
S10 E22
Aloha
In the series finale, McGarrett confronts a final threat to his ohana and ultimately chooses to leave the islands, closing out a decade of service.
Steve McGarrett is one of the central figures in Hawaii Five-0, a action/crime/drama series that aired on CBS from 2010-2020. Within the narrative of Hawaii Five-0, Steve McGarrett serves as a pivotal character whose decisions and relationships drive key story arcs throughout Seasons 1-10. The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Alex O'Loughlin, Steve McGarrett has become one of the most recognizable characters in modern television. Alex O'Loughlin's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Alex O'Loughlin's work has been recognized with 1 major award, reflecting the critical acclaim their portrayal has received.
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? Frequently Asked Questions
Alex O'Loughlin plays Steve McGarrett in Hawaii Five-0.
Steve McGarrett is a former Navy SEAL who leads the elite Five-0 task force in Hawaii, driven at first by his father's murder and later by loyalty to the team he builds.
