Barnard Arnold 'Barney' Gumble, Sr. (born April 20) is the Springfield town drunk who often works as human guinea pig for medical research facilities. He is Homer Simpson's best friend, although to a lesser extent after high school. Being a frequent customer at Moe's (to the point of sleeping there) Barney considers Moe to be his second best friend; however, he is often abused by Moe and Arnie Gumble in the process, mainly due to Moe's personality. Barney was formerly an A-student back at Springfield High, but lost it all due to his drinking alcohol and is since then seen as a disgrace by his entire family, none of whom drinks. When he sings, he has a very nice voice. This talent was discovered by the Be Sharps when Barney was in the men's restroom. He is a recurring character in The Simpsons and a minor character in The Simpsons Movie. (Source: Fandom.com, CC BY-SA)