Pitt mụrụ na Shawnee, Oklahoma, na William Alvin Pitt, onye nwe ụlọ ọrụ na-ebugharị ụgbọala, na Jane Etta (née Hillhouse), onye ndụmọdụ ụlọ akwụkwọ. Ezinụlọ ahụ kwagara Springfield, Missouri, ebe ya na ụmụnne ya, Douglas Mitchell (amụrụ na 1966) na Julie Neal (amụrụ na 1969). Amụrụ n'ime ezinụlọ na-agbanwe agbanwe, a zụlitere ya dị ka Southern Baptist mana kemgbe ahụ ekwuputala na ọ nweghị "mmekọrịta dị ukwuu na okpukpe" nakwa na ọ "na-agbanwe agbanwe n'etiti agnosticism na ekweghị na Chineke". Pitt akọwaala Springfield dị ka "Markin mba, Jesse James mba", ebe ọ tolitere na "ọtụtụ ugwu, ọtụtụ ọdọ mmiri".
Mahadum Missouri