Lulu and Mimi Vrallon

Lulu and Mimi Vrallon are two sisters who live in the drain of the Mongleys' kitchen sink, and whose heads are on opposite ends of the same vermiform body. Lulu is the wife of Jag Tallerson, and, while she normally cedes to him the leadership over their fistulary community, when it comes to important matters she is more than capable of asserting herself and getting her way.

Both Lulu and Mimi take pride in their French ancestry—this may be one factor behind Lulu's decision to keep her maiden name—and Mimi, in particular, is always trying out new recipes inspired by French cuisine, making use of whatever she finds in the drainpipes.