Frieza is a major villain from Dragon Ball. He is an evil alien ruler who desires to rule the world. Frieza was also responsible for the destruction of Planet Vegeta and the Saiyan race. Frieza has been acknowledged as one of the strongest beings in the universe.
Frieza can best be described as a heartless and cruel individual who only genuinely cares for himself. Frieza is sadistic and vicious and takes pleasure in destroying lives and making people suffer as he did with the Saiyans and the Namekians. Frieza is also incredibly power-hungry and would like to become the ruler of the universe. On top of desiring to conquer the universe, Frieza would like to become an immortal being to ensure his domination of the universe to the fullest.
Frieza cares little for those around him like his subordinates, for instance. In fact, Frieza is prone to murder his own subordinates if they fail an important mission or he deems useless and incompetent. Frieza also dislikes anything that may be a threat to him like the rise of a Super Saiyan and would take a destructive measure towards preventing that threat like destroying an entire planet of innocents. As a fighter, Frieza is overall vicious as he ruthlessly beaten Piccolo in his battle. After losing in his battle against Goku, Frieza has shown to really dislike him and desired to kill him and destroy Earth as a part of his vengeance.
Frieza is one of the strongest fighters in the universe. He has superhuman strength and massive reserves of energy. Frieza is not only one of the strongest beings in the universe but he is also feared across the universe for being an overwhelmingly powerful fighter. In all his forms, Frieza was strong enough to fight all the Z fighters by himself without tiring out.
Among having an extreme reserves of energy, Frieza is capable of flight, superhuman speed and reflexes, superhuman strength, and the ability to create energy blasts. In the movie, Dragon Ball Z: Resurrection 'F', it was stated that he has never trained to enhance his powers during his life time. However, Frieza said that if he trains for a few months then he will have the powers of a god. Even after his revival and ascension, Frieza still remains as a serious foe to the Z fighters and other individuals.
In his fight against Goku, Frieza was bisected by an energy beam that the latter threw at him. While he was able to survive the attack, it left him immobilized and as a result he was not able to leave planet Namek before its destruction.