Parental support predicts low levels of depression in teenagers, and psychological control high levels. However, this pattern holds true for cross-sectional research only whereas longitudinal support is mixed at best. Moreover, few studies have investigated long-term effects into young adulthood. This study explores effects of teenagers’ experienced parental support and psychological control on depression and parent-child relationships in young adulthood, three and five years later. It also explores parental behaviors as outcomes of teen depression. Out of 1,319 U.S. American adolescents aged 11-19 in 2002, those who had reached young adulthood by 2005 (n = 575) and 2007 (n = 878), respectively, were re-interviewed. Also the youngest participants, who still were in adolescence, took part in 2007 (n = 224). In cross-lagged panel regressions, maternal psychological control predicted depression and low well-being over time whereas maternal support predicted close parent-child relationships. For the youngest participants, effects on parenting were tested, and depression predicted increased maternal psychological control after five years. Only few effects were found for fathers. These findings suggest that psychological control does not make young adults withdraw from the relationship, despite their increased independence. Instead, they still expose themselves to this parenting behavior, resulting in increased depression. Depression also contributes to psychological control, resulting in a vicious circle of maternal psychological control and youth depression. Parental support in contrast is linked to relationship closeness over time, but largely unrelated to both depression and psychological control. The differential roles of psychological control and support will be discussed further.