Kuriza

Personality
generally a arrogant and cocky child as well as being very childish and playful comparative to cooler and frieza in their youth and being very bold and jealous of his family greater power

History
Being the only son of frieza and never to be found as he was to weak to be shown as a child of frieza despite being such and having vegeta watch him hoping to toughen him up at the time of Frieza's demise however he did not takeover due his childish nature and later being sent to earth to get out of his hair

Power
having power weaker to vegeta in the saiyan saga as he stated he was around that level despite it being years since that point and he was spying on frieza for the galactic patrol as hey did nit have the power to and having pretty bad combat skills