Yamcha is another member of the Z Fighters. Similar to others, he started as an enemy to Goku but he eventually became his strongest allies. Yamcha thrives most as a martial artist.
His only fear is women. He was able to overcome this though when he meets Bulma and they engage in a relationship although it was short-lived as Bulma ended up falling in love with Vegeta.
As the series continues on, Yamcha took more of a comical role similar to Krillin though he remained a valuable ally to the group.