Amy (The Dad Who Knew Too Little)

Amy is the ex-wife of Lou.

History
While investigating the break-in at the animal testing facility, Lou mentioned that one of the monkeys had the same name as his ex-wife. The name could be seen on a plaque on one of the cages.

Lou later mentions that Eddie was sleeping with her and Chief Wiggum asks "I thought the divorce was final", Lou replies saying "Since when is a divorce ever final?".

Her name was seen crossed out on a tattoo on Lou's chest.

She went on a date with Eddie.