Zabbaleen
The Zabbaleen ( ', ) is a word which literally means "garbage people" in Egyptian Arabic. The contemporary use of the word in Egyptian Arabic is to mean "garbage collectors". In cultural contexts, the word refers to teenagers and adults who have served as Cairo's informal garbage collectors since approximately the 1940s. The Zabbaleen (singular: ', ) are also known as Zarraba (singular: Zarrab), which means "pig-pen operators." The word ' came from the Egyptian Arabic word ' (, ) which means "garbage".
Zathras
The first Zathras travelled 1,000 years into the past on Babylon 4 with Jeffrey Sinclair, who (during the trip) transformed into the Minbari religious figure Valen in order to help the Minbari defeat the Shadows. The fate of the first Zathras is not fully known following the Minbari's acceptance of Sinclair as Valen, but Zathras does appear in the comic "In Valen's Name" and appears to act as Valen's assistant. In the comic, Rashok, a Minbari, attempts to speak to Valen, and Zathras prevents Rashok from doing so and is strong enough to overpower Rashok. Zathras appears to be of some importance as he states, "If Valen can listen to Zathras... you can listen to Zathras!" Rashok also refers to Zathras as Valen's "helpmate". The comic also shows how quickly Zathras' behavior can shift, as he goes from attacking Rashok to offering to make him a snack.