Farkas "Bulk" Bulkmeier and Eugene "Skull" Skullovitch, better known as Bulk and Skull, are fictional characters in the Power Rangers universe. They appeared as permanent cast members from "Mighty Morphin Power Rangers" until "Power Rangers in Space". Bulk (by himself) was a recurring character in "Power Rangers Lost Galaxy" and Skull made one cameo appearance, making the pair the two longest consecutively appearing characters in the program. They later returned for a cameo in "Power Rangers Wild Force" and in "Power Rangers Samurai" where Bulk is teaching Skull's son Spike how to be a samurai.