Alex O'Loughlin is an Australian actor, writer and director, who plays Lieutenant Commander Steve McGarrett on CBS' remake of the TV series Hawaii Five-0. He had starring roles in the films Oyster Farmer (2004) and The Back-up Plan (2010), as well as on such television series as Moonlight (2008) and Three Rivers (2009). O'Loughlin was born on 24 August 1976, in Canberra, Australia, of Irish and Scottish descent.His father is a physics and astronomy teacher in Sydney and his mother is a nurse. O'Loughlin suffered from obsessive-compulsive disorder when he was a child. He enrolled at the National Institute of Dramatic Art (NIDA) in Sydney in 1999 and graduated in June 2002 after completing a three-year, full-time Bachelor of Dramatic Art program. O'Loughlin began working in short films and fringe theatre as a teenager in Sydney. One of his first acting jobs was an extra in a commercial, playing a Marine. After graduating from NIDA (National Institute of Dramatic Arts), he began his career in Australian television and film productions. Some of his TV credits include roles in BlackJack: Sweet Science, Love Bytes and White Collar Blue. Alex O'Loughlin(1976년생, Canberra, Australian Capital Territory, Australia) 는 배우로, 대표작으로 화이트아웃, 플랜 B, 인비저블이 있으며, 그 외에도 크리미널 마인드, 하와이 파이브 오, 지미 키멜 라이브!, 더 쉴드, 로맨틱 홀리데이, 문라이트, White Collar Blue, 어거스트 러쉬, Three Rivers, 맨 씽, The Incredible Journey of Mary Bryant, 피드 등 다양한 작품에 출연했다. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2010년 하와이 파이브 오에서 Steve McGarrett 역을 맡았다. 2010년 하와이 파이브 오 제작에 참여했다. 2010년 하와이 파이브 오 연출을 맡았다.