Toni Collette as Tara Gregson, is a wife/mother who works as a mural painter. She loves her family and often feels guilty for the bizarre events she puts them through. Tara is only somewhat co-conscious with the alters in her system: she has no recollection of anything they do when they are out, but they know all about what she does. Though Tara's personalities re-emerge because she goes off her medication, Cody has stated that Tara isn't being irresponsible by not taking the medication, but rather "wants a chance to try living with her condition, instead of smothering it with drugs" because it is "clear ... that she is not receiving proper treatment for her dissociative identity disorder". Collette has said that she is "excited" and "absolutely in love" with the project.