Rebel Melanie Elizabeth Wilson is an Australian actress, comedian and producer. After graduating from the Australian Theatre for Young People in 2003, Wilson began appearing in the SBS comedy series Pizza (2003–2007) and later appeared in the sketch comedy show The Wedge (2006–2007). She wrote, produced and starred in the musical comedy series Bogan Pride (2008). Shortly after moving to the United States, Wilson appeared in the comedy films Bridesmaids and A Few Best Men, both in 2011.
In 2012, Wilson appeared in the comedy films What to Expect When You're Expecting, Struck by Lightning, and Bachelorette. Wilson wrote and starred in Super Fun Night (2013), a television sitcom that aired for one season on ABC. She gained wider recognition for her role in the musical comedy Pitch Perfect film series (2012–2017).
In 2019, Wilson had her first lead roles in the comedies Isn't It Romantic and The Hustle, and also had a supporting role in the comedy drama Jojo Rabbit. In 2022, she starred in the Netflix comedy film Senior Year, also serving as a producer.