Nicholas Galitzine

Adam / He-Man

Camila Mendes

Teela

Idris Elba

Duncan

Jared Leto

Skeletor

Alison Brie

Evil-Lyn

Jóhannes Haukur Jóhannesson

Fisto

Jon Xue Zhang

Ram Man

Sam C. Wilson

Trap Jaw

James Purefoy

King Randor

Charlotte Riley

Queen Marlena

Morena Baccarin

The Sorceress

Kristen Wiig

Roboto (voice)

Tom Wilton

Cringer (voice)

Christiaan Bettridge

Dian

Artie Wilkinson-Hunt

Young Adam

Eire Farrell

Young Teela

James Wilkinson

Mekaneck

Dolph Lundgren

Macho Man

Kojo Attah

Tri-Klops

Hung Dante Dong

Karg