Krillin is a short, hairless warrior monk who serves as comic relief during tense moments in the Dragon Ball series. Unlike Chiaotzu, he does not have a nose. Krillin is an outgoing, competitive martial artist with a good nature. His only true vice appears to be his interest in women, though this interest becomes more romantic as the series progresses. In dangerous situations, Krillin sometimes expresses despair about possibly dying unmarried.
Krillin is one of the most powerful and talented human martial artists on Earth. He is courageous, a loyal ally, and good-natured. Despite being overpowered by major enemies in the series, he remains a prominent Z Fighter. Krillin was once a fierce rival of Son Goku but quickly became his best friend while training under Master Roshi. He also has a close relationship with Gokus son, Gohan.
In the later part of the series, Krillin marries Android 18 and settles down, having a daughter named Marron.