Krillin is a prominent character in the Dragon Ball series, known for being one of Goku's closest friends and allies. Despite not being a Saiyan, Krillin is a skilled martial artist and a key member of the Z Fighters. He provides comic relief with his humorous personality but also displays great bravery and loyalty. Throughout the series, Krillin participates in several battles against powerful foes, often showing remarkable courage. He is also notable for his relationship with Android 18, with whom he eventually starts a family.