He played Lieutenant Commander Steve McGarrett in the hit television series Hawaii Five-0. His starring roles in Oyster Farmer and The Back-up Plan additionally bolstered his fame.
He appeared on the 2008 television show Moonlight.
Glenn Close appeared with him on the television series The Shield.
He was diagnosed with asthma and ADHD, and wanted to become a jet fighter pilot.
He has a younger sister named Jennifer. He married his longtime girlfriend Malia Jones in Hawaii in 2014. He has two sons named Saxon and Lion.