Grant Harrison Mateo
Known For & Full Filmography6 Titles
Drama Series - 2025, 16 episodes • as Young Clerk
A small team of investigators are assembled to track down and capture the most dangerous killers our country has ever seen, all of whom have just escaped from a top-secret prison that's not supposed to exist.
Movie - 2024, 2h 15m • as Tiny Boy
New student Cady Heron is welcomed into the top of the social food chain by the elite group of popular girls called ‘The Plastics,’ ruled by the conniving queen bee Regina George and her minions Gretchen and Karen. However, when Cady makes the major misstep of falling for Regina’s ex-boyfriend Aaron Samuels, she finds herself prey in Regina’s crosshairs. As Cady sets to take down the group’s apex predator with the help of her outcast friends Janis and Damian, she must learn how to stay true to herself while navigating the most cutthroat jungle of all: high school.
Movie - 2023, 2h 15m • as House Party Teen Who Texts in Bed
On the brink of losing her childhood home, Maddie discovers an intriguing job listing: wealthy helicopter parents looking for someone to “date” their introverted 19-year-old son, Percy, before he leaves for college. To her surprise, Maddie soon discovers the awkward Percy is no sure thing.
Movie - 2024, 2h 15m • Main Cast Role
Jonah, a typical college student, enjoys partying with his roommate Adam until one night he wakes up with a broken hand and no memory of what happened. As he delves into the mystery, an encounter with an unexpected visitor questions his grip on reality itself.
Movie - 2025, 2h 15m • as Wes
A pair of freshman baseball players, desperate to prove themselves to their new team, get roped into a long-standing prank: stealing their rival school's beloved mascot. But as the night drags on and tensions rise, what seemed like a simple initiation turns into an unpredictable, high-stakes mess.
Movie - 2024, 2h 15m • as Brian
A longtime family-owned business gets pressured to sell to gentrify the neighborhood until a local loving mobster concocts a crazy plan to save the day, clearing the way for two people searching for love to find their everlasting. Set against the colorful backdrop of Brooklyn’s Bay Ridge, this romantic comedy brings two love stories—one straight and one queer—to the screen, showcasing the power of connection, family, and community.