As well as Stewart and Davis, Happiest Season also boasts the acting talents of Schitt’s Creek star Dan Levy, Mary Steenburgen, Victor Garber, Alison Brie, Aubrey Plaza, and Mary Holland.

Alison Brie has been cast in the forthcoming ... 2020's The Rental, and 2020's Happiest Season. Additionally, she voices Princess Unikitty in The Lego Movie franchise. While plot details remain ...