Cui

Cui is one of Frieza's henchmen, and his third strongest soldier, not counting the Ginyu Force. He is purple, fish faced, and is Vegeta's rival.

Dragonball Z
Cui was responsible for the invasion and destruction of the Invisible Spaceship people's home planet, nearly killing Zetian's second in command, Bon.

On Planet Frieza, Cui told Vegeta that Frieza was on Planet Namek. Shortly after Vegeta left, Cui received the order from Frieza to kill Vegeta, so he arrived on Namek to kill him. He tracked down Vegeta, who waited patiently for him. Initially Cui was much stronger than Vegeta, but after recovering from a recent battle, Vegeta was stronger than Cui, with a power level of 24 thousand. Cui tried to trick Vegeta and blasted him, but Vegeta avoided the attack with his increased speed. Cui attempted to run, but Vegeta caught up to him and punched him into the air. He then destroyed him, blowing him up in a fireworks style attack.

Frieza commented on Cui's death by saying he never liked him much anyways.

At least two other Frieza soldiers of Cui's race appeared in the anime; on Planet Frieza, one of them liked the idea of Frieza being dead, and was killed on the orders of the other, who was loyal to Frieza. He was killed when the computer, trying to scan Super Saiyan Goku's power level, exploded, blowing up Planet Frieza's main building.