Morgan has garnered outstanding reviews and a huge fan base, based on his performance in the role of Koby in the much anticipated, live action adaptation of One Piece for Netflix, based on the highly celebrated Manga of the same name. This came not long after performing a lead role in Evil Dead Rise for director Lee Cronin, the latest chapter in the Evil Dead horror franchise.

He can also be seen in See-Saw Films The End from creator Samantha Strauss (Foxtel Australia, Showtime US and SkyTV UK); The Girlfriend Experience, a Starz Original Series, opposite Carmen Ejogo, and the re-telling of iconic Australian feature film Storm Boy. Short films include Beautiful They (directed by Cloudy Rhodes) and Calliope's Prelude (directed by Richard Ellis). He also appears in a supporting role in artist Del Kathryn Barton's feature directorial debut, Blaze.

Morgan made his screen debut at only seven years of age, opposite Charlotte Gainsbourg in the Australian/French feature film The Tree. Directed by Julie Bertuccelli, the film premiered on closing night of the Cannes Film Festival and earned Morgan rave reviews. His performance was honoured with a Film Critics Circle Award and AFI nominations in both the categories of Best Lead Actor and Best Young Actor. The following year, Morgan appeared in The Hunter, an adaptation of the award-winning novel by Julia Leigh. The film, staring Willem Dafoe and Sam Neill, premiered at the Toronto International Film Festival (TIFF) and saw Morgan again nominated for an AFI (AACTA).

Other credits include Steven Spielberg's Terra Nova; Return To The Devil's Playground for Foxtel, and the short films Julian (Crystal Bear Winner for Best Short Film at the Berlin Film Festival, Generation KPlus) and Alice Englert's The Boyfriend Game, which premiered at TIFF.