Neither Goku nor Broly: Akira Toriyama Reveals Who the Legendary Super Saiyan That Terrifies Frieza Is

The identity of the legendary Super Saiyan has been the subject of much speculation for a long time, until manga creator Akira Toriyama himself decided to answer the thorny question: who is really the legendary Super Saiyan that makes Frieza tremble with fear in Dragon Ball?