Adam / He-Man

Nicholas Galitzine

Skeletor

Jared Leto

Teela

Camila Mendes

Duncan / Man-At-Arms

Idris Elba

Evil-Lyn

Alison Brie

Fisto

Jóhannes Haukur Jóhannesson

King Randor

James Purefoy

Ram Man

Jon Xue Zhang

The Sorceress

Morena Baccarin

Trap Jaw

Sam C. Wilson

Queen Marlena

Charlotte Riley

Roboto

Kristen Wiig

Young Adam

Artie Wilkinson-Hunt

Young Teela

Eire Farrell

Cringer (voice)

Tom Wilton

Tri-Klops

Kojo Attah

Dian

Christiaan Bettridge

Suzie

Sasheer Zamata

Hussein

Christian Vunipola

Mekaneck

James Wilkinson

Macho Man

Dolph Lundgren

Karg

Hung Dante Dong

Spikor

James Apps

Goat Man

Hafþór Júlíus Björnsson

Pigboy

Arun Bassi

Officer Black

Max Kraus

Officer Blumenthal

Kelly Coughlin

Julie

Elena Rivers

Moss Man

Stephen Adentan

Castle Guard

Michael Bijok

Guard (Subternia)

Everleigh Brenner

Co-Worker

Emma Mulkern

Co-Worker

Elliott Culpepper

Co-Worker

Dylan Zalikowski

Palace Servant

Michelle Schechter

Palace Servant

Chanelle Nicole

Royal Guard

Susie Coutts

Garda (Bailey Training)

Eddison Burch

Darid (Bailey Training)

Arthur Galiano

School Teacher

Aaron Lynn

Young Dian

Delilah O’Riordan

Nerd

Callum Burns

Nerd

Devonté Sackitey

Nerd

Mark Conway

Sword Nerd

Connor Crawford

Fanboy

Richard David-Caine

Comics Store Clerk

Olivia Marcus

Prisoner (Dungeon)

Billy Clements

Ship (voice)

Piotr Michael

Orko (voice)

Christopher Ragland

Cringer Cub (voice)

Fletcher Glenn

Beast Man (voice)

Gary Martin

Adora / She-Ra (uncredited)

Lauren Saliu

Dog Man (uncredited)

Charlie Jimenez

Goat Man (voice) (uncredited)

Kellen Goff