Broly (Dragon Ball Super)

Broly is the main antagonist of the Dragon Ball Super movie Dragon Ball Super: Broly. He is a powerful Saiyan warrior working for the Frieza Force for mysterious reasons.

He is based of the character Broly from the non-canon Dragon Ball Z movie Broly - The Legendary Super Saiyan, whom Akira Toriyama decided to induct into the canon proper due to his popularity.

Past
Broly was born around the same time as Goku and Vegeta to Paragus, a trusted lieutenant of King Vegeta. Born with a power level of 10,000, King Vegeta, jealous of Broly's power level being greater than his son, sent him away to a frontier planet.

Dragon Ball Super: Broly
Some time later, Broly, all grown up, and his father both joined the Galactic Frieza Army.