Jackson starred in a leading role opposite Elizabeth Banks and David Denman in Brightburn: Şeytanın Oğlu (2019), which premiered May 24, 2019. He also appeared in Avengers: Endgame as Scott Lang (12 years old). Born in San Diego in 2003, Jackson's debut into acting was at the age of four when he played the Grinch in his preschool play. He has always enjoyed performing and public speaking, and at the age of ten, he asked to attend an open audition in San Diego. That audition led to a showcase in Los Angeles, and ultimately to signing with his manager and agent. Within a few months, Jackson landed a recurring role on the hit Showtime series Shameless. He has also appeared on several other hit television shows including Get Shorty, GLOW, Colony, and Henry Danger. He had a recurring role on Nickelodeon's Legendary Dudas. In addition, Jackson has had roles in the films Gone Are the Days (2018) and The Scent of Rain and Lightning. When not pursuing his acting career, Jackson enjoys skateboarding, biking, snowboarding, listening to music, writing, and hanging out with friends and family.