Popsugar Entertainment On My Block How Old Are the Actors in On My Block? How Old Is the Cast of On My Block? An Age Investigation 2 April 2019 by Amanda Prahl Image Source: Everett Collection The Netflix teen drama On My Block centres on a quartet of teenage friends in an inner-city Los Angeles neighbourhood, navigating typical teen problems like love and school alongside more dangerous concerns. While there are some supporting characters who are older, for the most part, the series focuses on its young teen ensemble, who are just in high school. It's become something of a popular practice for TV shows to cast much older actors to play teenage characters, resulting in characters who don't exactly look the way we remember looking as teens. We decided to check out On My Block and see if this holds true for its cast or not. Check out the ages of some of the main cast members ahead! Sierra Capri, aka Monse: 20 Image Source: Everett Collection 1 / 6 Diego Tinoco, aka Cesar: 21 Image Source: Everett Collection 2 / 6 Brett Gray, aka Jamal: 22 Image Source: Everett Collection 3 / 6 Jason Genao, aka Ruby: 22 Image Source: Everett Collection 4 / 6 Jessica Marie Garcia, aka Jasmine: 32 Image Source: Everett Collection 5 / 6 Julio Macias, aka Oscar: 29 Image Source: Everett Collection 6 / 6 On My BlockTV