Rosie Day

Rosie Day
Day in 2017
Born
Rosie Jane Day

Occupation(s)Actress, writer, director
Years active1999–present

Rosie Jane Day is an English actress, author, playwright, and filmmaker. She is known for her portrayals of Mary Hawkins in the Starz historical drama series Outlander (2016), Tina Pemberton in Sky One's comedy-drama series Living the Dream (2017–2019), Summer Falk in the romantic comedy film All Roads Lead to Rome (2016), and Sierra in the supernatural horror film Down a Dark Hall (2018).

Day is an ambassador for stem4, a teenage mental health charity. Her debut book, Instructions for a Teenage Armageddon—based on her one-woman show of the same name—was published in 2021.