Whatarau was born in Auckland Tāmaki Makaurau, New Zealand and is of Māori (Ngāti Kahungunu, Ngāti Raukawa, Ngāti Whanaunga) descent. Matariki attended high school in Beijing, China and in Lilongwe, Malawi. Whatarau is a graduate of Toi Whakaari: New Zealand Drama School (Te Kura Toi Whakaari ō Aotearoa) earning a Bachelor of Performing Arts (Acting) in 2009.
