Cooper Alexis is a professional paid actor, both on stage and screen.

His professional acting career started in 2019, at the age of 12 when he was cast as a swing, covering 4 of the 6 male children's roles in Andrew Lloyd Webber's School of Rock the Musical, which toured South Korea. In 2019 and 2020, he performed the role of Freddy (the drummer) in the Sydney season of the show. After performing over 100 live stage shows and having further planned tours cancelled due to COVID, Cooper decided that he'd like to try screen acting.