| First Name | Alex |
| Last Name | O`Loughlin |
| Full Name at Birth | Alex O`Lachlan |
| Other Names | Alex Sculthorp |
| Age | 35 |
| Date of Birth | August 24, 1976 |
| Birthplace | Canberra, Australia |
| Height | 6' 1" (185 cm) |
| Build | Athletic |
| Eye Color | Hazel |
| Hair Color | Brown - Dark |
| Distinctive Features | 6 tattoos; eyes that change color.Bright smile |
| Star Sign | Virgo |
| Ethnicity | White |
| Nationality | Australian |
| University | National Institute of Dramatic Art (NIDA) - Class of 2002 |
| Occupation Category | Actor |
| Claim to Fame | TV and film star |
| Talent Agency | Linsten*Morris Management (Sydney); United Talent Agency (LA) |
| Shoe Size | 11 |
| Official Website | facebook.com |
| Father | Father: a teacher.Stepfather: Alex has said he is/was Canadian. |
| Friends | Jason Dohring; Sophia Myles; Dr. Gonzales-Stawinski; |
| Associated People | Nina Tassler; Les Moonves; |
| Pets | Dusty |
| Favorite People | Family and friendsDaniel Day-Lewis; Sean Penn; Ryan Gosling; Gary Oldham; |
| Favorite Movies | Bram Stoker's Dracula [1992]The Hunger [1983]The Lost Boys [1987]In the Name of the Father |
| Favorite TV Shows | Family GuyThe ShieldThe ContenderAmerica's Next Top ModelMonkey Magic (old Australian kids show) |
| Favorite Bands | AC/DC; The Black Keys; Dan Auerbach; Kings of Leon; TV On the Radio;Iron Maiden |
| Favorite Books | Tibetan Book of Living and Dying; A Fortunate Life; Alex quote "stories about real people."Letters to a Young Poet; |
| Favorite Places | Diamond Head Grill, Oahu; Mexico |
| Favorite Foods | Milk, sushi; chocolate cake; his mother's pea soup and roast beef. |
| Favorite Colors | blue |
| Favorite Accessories | Watches, hats and scarves. |
Alex O'Loughlin (born Alexander O'Lachlan on 24 August 1976 in Canberra, Australia) is an Australian actor, currently starring in CBS's Hawaii Five-0 as Lieutenant Commander Steve McGarrett.
Selected Alex O'Loughlin film and TV show credits: