| First Name | Lou |
| Middle Name | Francis |
| Last Name | Costello |
| Full Name at Birth | Louis Francis Cristillo |
| Age | 53 (age at death) |
| Date of Birth | March 3, 1906 |
| Birthplace | Paterson, New Jersey |
| Date of Death | March 3, 1959 |
| Location of Death | East Los Angeles, California |
| Cause of Death | Heart attack |
| Height | 5' 5" (165 cm) |
| Build | Large |
| Hair Color | Brown - Dark |
| Star Sign | Pisces |
| Religion | Roman Catholic |
| Ethnicity | White |
| Nationality | American |
| Occupation Category | Actor |
| Claim to Fame | Abbott and Costello |
Louis Francis Costello (March 6, 1906 – March 3, 1959) was an American actor and comedian best known as half of the comedy team of Abbott and Costello, with Bud Abbott. Costello was famous for his bumbling, chubby, clean-cut image that has appealed to many Americans over the decades, and for his shouted line of "HEEEEYYY ABBOTT!!."
Selected Lou Costello film and TV show credits: