| First Name | Katherine |
| Middle Name | Marie |
| Last Name | Heigl |
| Full Name at Birth | Katherine Marie Heigl |
| Other Names | Katherine KelleyKatie |
| Age | 33 |
| Date of Birth | November 24, 1978 |
| Birthplace | Washington, DC |
| Height | 5' 9" (175 cm) |
| Build | Slim |
| Eye Color | Brown - Dark |
| Hair Color | Blonde |
| Star Sign | Sagittarius |
| Religion | Mormon |
| Ethnicity | White |
| Nationality | American |
| High School | New Canaan High School, New Canaan, CT (1997) |
| Occupation | Actress |
| Occupation Category | Actress |
| Claim to Fame | Isabel Evans on Roswell Izzy Stevens on Grey's Anatomy |
| Brand Endorsements | Levi Jeans (Endorsed while on Roswell) [1999]Cheerios |
| Official Website | katherine-heigl.comkheigl.comkatherineheiglsource.com |
| Father | Paul Heigl |
| Mother | Nancy Heigl |
| Brother(s) | Jason Heigl (Deceased)Holt Heigl |
| Sister(s) | Meg Heigl |
| Other Family Members | Nancy Leigh "Naleigh" Kelley (Adoptive Daughter with Husband Josh Kelley)Josh Kelley (Husband) |
| Friends | Colin Hanks, T.R Knight |
| Associated People | Sandra OhEllen PompeoShiri ApplebyMajandra DelfinoWilliam SadlerJason BehrBrendan FehrEmilie De Ravin |
| Favorite TV Shows | RoswellGrey's Anatomy |
Katherine Marie Heigl (born November 24, 1978) is an American actress and producer. She is known for her role as Dr. Izzie Stevens on ABC's Grey's Anatomy (2005-2010) and her starring role in the movies Knocked Up, 27 Dresses, The Ugly Truth, Killers, and Life As We Know It.
Selected Katherine Heigl film and TV show credits: