Mackenzie Rio Davis is a Canadian actress. She made her feature film debut in the drama film Smashed (2012). In 2013, she appeared in the film The F Word, for which she received a Canadian Screen Award nomination for Best Supporting Actress. From 2014 to 2017, she starred as computer programmer Cameron Howe in the AMC period drama series Halt and Catch Fire.

Smashed is a 2012 American drama film directed by James Ponsoldt, written by Ponsoldt and Susan Burke, and starring Mary Elizabeth Winstead and Aaron Paul. Winstead and Paul play a married couple, Kate and Charlie Hannah, both alcoholics. After a series of embarrassing incidents caused by her drinking habit, Kate decides to get sober with the help of a coworker and a sponsor from Alcoholics Anonymous.