| Admiral Mann|
|Relatives|| Wife: Mrs. Mann |
Children: Otto Mann and Henry Mann
|First Appearance||"It's a Mad, Mad, Mad, Mad Marge"|
|Voiced By||Harry Shearer|
Admiral Mann is Otto's father and an admiral in the United States navy, and the two do not get along (Jim Morrison's father was also a naval admiral). His father warned Otto that if he spent his life playing his guitar, his life would amount to nothing. He appeared only at Otto's wedding.