Board Thread:Wiki Discussions and Support/@comment-995176-20141123043523/@comment-25857684-20141212130905

Well, first off their ancestors were originally red haired. That's when both parents are from the original Uzumaki clan. Naruto is a cross breed thou as Minato is not originally from the Uzumaki clan, only Kushina is. This doesn't change the fact that Naruto doesn't inherit the Uzumaki traits such as the huge life force. Gaara was never from the Uzumaki clan as both his parents were not in that clan to begin with. Nagato has red hair coz both his parents are from the original Uzumaki clan. Same goes for Karin.