Janet Green (also Marlowe and Dillon) is a fictional character that appeared on the daytime soap opera, All My Children.

She is commonly known for terrorizing the residents of Pine Valley, including her sister Natalie Marlowe and the murder of Will Cortlandt.

Janet frequently suffers from bouts of psychosis resulting from emotional abuse inflicted upon her since childhood.

Collins played both characters until she left All My Children in 1992 and her replacement in the role of Natalie Melody Anderson, portrayed Janet for one day in 1993.

After Mattson's tenure, Collins reprised the role several times, with each occurrence lasting a couple of months.