As with all Nibblonians, Nibbler's feces consist of dark matter, which can be used as starship fuel.
Zapp Brannigan (voiced by Billy West) is a senior member of the military of the Democratic Order of Planets (D. He will often mispronounce words, such as champagne ("sham-PAGG-Enn") and guacamole ("GWACK-a-mole") in the episodes "Love's Labours Lost in Space" and "The Problem with Popplers" (respectively). He is known to make catastrophic mistakes (such as destroying D. He is introduced in the episode "A Clone of My Own", in which he rejects Farnsworth and becomes hostile to the entire Planet Express crew.
He appears to be using his job to gather information about the human race to aid the planned invasion. His co-host Linda van Schoonhoven seems either blissfully ignorant or entirely dismissive of Morbo's hatred and usually responds with an empty-headed laugh to Morbo's contemptuous outbursts. Scruffy first appeared "Hell Is Other Robots" as a stagehand at a Beastie Boys concert, he was later added to the cast as a little-seen staffperson at Planet Express with the second-season episode "Anthology of Interest I".
Scruffy generally approaches both his job and the rest of his life with a high level of apparent apathy, as shown in "Parasites Lost", in which he ignores a broken boiler in the Planet Express Headquarters to read a pornographic magazine, and continues to read even after said boiler explodes, declaring, "Scruffy's gonna die the way he lived." In "Future Stock", it is revealed that he is deeply fond of the company, and owns four times as much stock as the other employees.
Dwight Conrad (voiced by Bumper Robinson in the TV series, Phil La Marr in the films) is the son of Hermes Conrad and La Barbara Conrad.
He is the close friend of Cubert Farnsworth, and takes after his father in the ways of accounting and bureaucracy.