Ptolemy Brown, often called just "P.B.", enjoys something of a monopoly as Teras Terrace's only resident plumber. His long, extendable and retractable eyestalks and tentacular arms particularly suit him to this job, as he can snake an eye down a drain to see what's blocking it, and then an arm down to take care of it. While a capable plumber, however, P.B. tends toward amorality, and while he's more or less reliable in his professional capacity he's not exactly a paragon of virtue off the job.