Zamasu is rendered with a statuesque, elegant silhouette that captures his composed Supreme Kai demeanor. The sculpt highlights sharp facial features with a calm, almost haughty expression, narrow eyes and a cleanly defined jawline. He has long, white hair that is sculpted to hold upright tufts, giving a divine, ethereal look. The figure wears his distinctive robe in a stark white tone with subtle shading and crisp folds, complemented by teal accents and a dark sash that hints at his regal status. The joints and articulation points are discreet, allowing dynamic poses while preserving the dignified appearance. Accessories include interchangeable hands and a neutral facial expression to suit both poised displays and action poses.

Zamasu is a Supreme Kai apprentice who believes mortals corrupt the universe and must be checked by absolute justice. He is patient, calculating, and supremely confident in his own doctrine, often speaking in formal, measured tones. In Dragon Ball Super, he partners with Goku Black to execute the Zero Mortals Plan, a radical scheme to erase all mortal beings and remake reality under his vision. He uses superior spiritual pressure, energy manipulation, and strategic deception to manipulate allies and enemies alike. The plan culminates in a brutal fusion with Goku Black that yields a nearly unstoppable foe, Fused Zamasu, whose arrogance, cruelty, and rigid worldview threaten every timeline. Ultimately, his hubris leads to a devastating downfall orchestrated by the gods and heroes.