The Vanderbilts
A rich couple who are frequently shocked by Homer's antics. They first appear in "Saddlesore Galactica" where Mr. Vanderbilt breaks his monocle after being shocked. This gag is reused in "A Tale of Two Springfields". In "Homer vs. Dignity", Mrs. Vanderbilt is shocked by Homer Simpson's antics twice. In "The Frying Game", Mrs. Vanderbilt is shown as friends with Mrs. Bellamy, Mrs. Glick and Agnes Skinner. They are a parody of the actual Vanderbilt family.
Read more about this topic: List Of Recurring The Simpsons Characters