The Astra Midseason Movie Award for Best Actress is one of the annual mid-season awards given by the Hollywood Creative Alliance.
| Year | Winner and nominees | Film | Role | Ref. |
|---|---|---|---|---|
| 2018 | Toni Collette | Hereditary | Annie Graham | [1] |
| Charlize Theron | Tully | Marlo Moreau | ||
| Danai Gurira | Black Panther | Okoye | ||
| Emily Blunt | A Quiet Place | Evelyn Abbott | ||
| Natalie Portman | Annihilation | Lena | ||
| 2019 | Lupita Nyong'o | Us | Adelaide Wilson/Red | [2] |
| Kaitlyn Dever | Booksmart | Amy | ||
| Beanie Feldstein | Molly | |||
| Elisabeth Moss | Her Smell | Becky Something | ||
| Emma Thompson | Late Night | Katherine Newbury | ||