Vegeta is a proud and formidable Saiyan prince, initially introduced as an antagonist in the Dragon Ball series before becoming a vital member of the Z Fighters. Known for his intense competitive nature and thirst for power, Vegeta possesses a complex personality that shifts from ruthless to loyal as the series progresses. He shares a strong rivalry with Goku but also develops a deep sense of responsibility towards his family and allies. Vegeta's love for his wife Bulma and son Trunks is central to his character arc, showing a softer side that contrasts with his usual harsh demeanor. His Saiyan heritage is a crucial aspect, with Vegeta striving to surpass his limits and the legacy of his race. His relationships with other characters like Piccolo, Gohan, and Freeza provide both conflict and camaraderie, shaping his journey.

Goku is the protagonist of the Dragon Ball series, recognized for his cheerful disposition, unwavering determination, and immense strength. He has a competitive spirit, a love for food, and an unmatched passion for training. Goku is a Saiyan originally sent to Earth as a baby and grew up isolated in the mountains, acquiring a pure heart and becoming Earth’s mightiest warrior. Despite his formidable powers, Goku retains a childlike innocence and frequently exhibits a strong sense of justice. He is an extraordinary fighter but has a reputation for arriving late to battles, as he prioritizes his training and family. As a husband and father, he cherishes his time with Chi-Chi and his sons, Goten and Gohan, and is close to friends like Piccolo, who serves as his mentor and quasi-adoptive father. His arch-enemy is the evil Freeza, with whom he has had many climactic battles.