He also has a Green elephant called Pinky as an imaginary friend who is killed by Homer's imaginary friend: who is the Simpsons' version of James Bond. Pinky thinks this is because he slept with Homer's imaginary friend's girlfriend.
Despite being shown in the First Church of Springfield, Lenny is a Buddhist. Born in Chicago, he is also a war hero and a three-time juror. His grandmother spent 20 years in a Soviet labour camp, hinting that Lenny may have ancestors from the former Soviet Union, or have ancestors who were POWs. Lenny was a member of the Springfield chapter of the Stonecutters secret society (Number 12, outranking Mr. Burns). Lenny seems to have little regard for his own life: "Quick and pointless, that's the death for me". Another example of his apathy towards salvation is that he shrugs after being pulled from a ladder which would have seen him and Homer to safety. In "Mommie Beerest", Lenny has a magazine cover from the week of his birth, the headline reads 'Bloodbath in Laos' this means his date birth is possibly in march of 1971, in that date Life magazine published on its cover photos of Laotian Civil War.
Lenny works at the Springfield Nuclear Power Plant alongside Carl Carlson. Despite his steady job, Lenny has been featured with several other jobs. On one occasion, he is promoted to head of the power plant when Mr. Burns goes bankrupt; which Smithers later describes to Homer as a "reign of terror". Homer considers Lenny to be the second richest man he knows. However, Lenny is once shown living in a dilapidated house, and pleads with Marge to not tell anyone how he lives. By the time of Helter Shelter, he has moved to a fancy, well-furnished modern apartment... that happens to share a wall with a jai-alai court. According to him, he finds the sound of the balls hitting the common wall 'soothing'.
