Television:
* "The Starter Wife" (2007-2008) - Played the role of Kayla.
* "East Los High" (2013-2017) - Played the recurring role of Mrs. Delacroix.
* "The Family" (2016) - Played the role of Detective Sarah O'Connell.
* "The Wrong Girl" (2016-2017) - Played the main role of Lily.
* "The Secrets She Keeps" (2020) - Played the role of Agatha.
* "The Unusual Suspects" (2022) - Played the role of Detective Erin Maxwell.
* "The Twelve" (2022) - Played the role of Kate Cunningham.
Film:
* "Dead Birds" (2008) - Played the role of Sarah.
* "I'm Not Afraid to Die" (2010) - Played the role of Emma.
* "Drift" (2012) - Played the role of Kate.
* "The Water Diviner" (2014) - Played the role of Sarah.
* "A Few Less Men" (2017) - Played the role of Julie.
This is not an exhaustive list, but it highlights some of Melanie Vallejo's most significant projects. She is a talented actress with a wide range of roles, and she continues to impress audiences with her performances.