| First Name | Len |
| Last Name | Lesser |
| Age | 88 (age at death) |
| Date of Birth | December 3, 1922 |
| Birthplace | New York, New York |
| Date of Death | February 16, 2011 |
| Location of Death | Burbank, California, U.S. |
| Height | 6' 1" (185 cm) |
| Build | Average |
| Hair Color | Salt and Pepper |
| Star Sign | Sagittarius |
| Ethnicity | White |
| Nationality | American |
| Occupation | Actor |
| Occupation Category | Actor |
| Claim to Fame | Seinfeld |
Leonard King "Len" Lesser (December 3, 1922 – February 16, 2011) was an American actor. He was known for a key role in the Clint Eastwood movie Kelly's Heroes and his recurring role as Uncle Leo on Seinfeld, which began during the show's second season in "The Pony Remark" episode.
Selected Len Lesser film and TV show credits: