Primary

• Android 18 Twin Sister of Android 17
• Android 18 Wife of Krillin
• Android 18 Mother of Marron (teen)

Extended

• Krillin Friend of Tien Shinhan
• Krillin Best friend of Goku
• Krillin Best friend of Goku
• Krillin Student of Master Roshi
• Krillin Husband of Android 18
• Krillin Friend of Yamcha (teen)
• Krillin Friend of Bulma Briefs (adult)
• Krillin Father of Marron (teen)
• Android 17 Twin Brother of Android 18
• Android 17 Brother-in-law of Krillin
• Android 17 Uncle of Marron
• Marron (teen) Daughter of Android 18
• Marron (teen) Niece of Android 17
• Marron (teen) Daughter of Krillin