Harrison Gilbertson (born 29 June, 1993) is an Australian actor from Adelaide, South Australia. He is the son of Julie Sloan and Brian Gilbertson. Originally having performed as a stage actor early in his career at the age of six, Gilbertson rose to further prominence in 2002 at the start of his screen acting career. He is known for his roles in the films Upgrade (2018), In The Tall Grass (2019), Oppenheimer (2023), and Springsteen: Deliver Me from Nowhere (2025).