Jaffee

Jaffees are blood-sucking, leech-like parasites that are able to take the form of their host. They were native to planet Melmac, prior to its destruction. Not much is known about Jaffees, except that they overran the Melmacian city of Detroit and renamed it Jaffeetown. It is also known that Jaffees are not vulnerable to boric acid, as Earth bugs are.

Appearances

 * ALF, s01e25, "La Cucaracha" (1987)