Bulk and Skull would remain chimpanzees for several episodes. They are voiced by their respective, however only the audience can understand them. Lt. Stone takes the chimpanzees into his care (claiming that they seem 'familiar'). They make several attempts to inform him and others of their true identities, but are unsuccessful. They were transformed into Chimps so Narvy and Schrier would have time to work on a proposed spin-off series for the characters which would have seen them operate a hotel, featuring El Vez, the "Mexican Elvis" (a local personality in Southern California). The attempts never made it to a final production, and the actors returned full-time to the series.