Skull is a fictional character associated with the Transformers franchise, appearing as a minor or variant character name in some related media and toy lines rather than as a major core cast member. As the name suggests, the character is typically presented with a skull-themed design or a fierce, intimidating persona. Depending on the continuity, Skull may function as a Decepticon-aligned warrior, a monster-like combatant, or a background figure used to reinforce the darker, more aggressive side of the series' conflicts.