| First Name | Cathy |
| Last Name | O`Donnell |
| Full Name at Birth | Ann Steely |
| Age | 46 (age at death) |
| Date of Birth | July 6, 1923 |
| Birthplace | Siluria, Alabama |
| Date of Death | April 11, 1970 |
| Location of Death | Los Angeles, California, USA |
| Cause of Death | cerebral hemorrhage brought on by cancer |
| Build | Slim |
| Hair Color | Brown - Dark |
| Star Sign | Cancer |
| Ethnicity | White |
| Nationality | American |
| University | Oklahoma City UniveristyAmerican Academy of Dramatic Arts |
| Occupation Category | Actress |
| Claim to Fame | The Best Years of Our Lives |
Cathy O'Donnell (July 6, 1923 – April 11, 1970) was an American actress, best known for her many roles in film-noir movies.
Selected Cathy O'Donnell film and TV show credits: