Blu Hunt

Dani Moonstar

Charlie Heaton

Samuel Guthrie

Maisie Williams

Rahne Sinclair

Henrique Zaga

Roberto da Costa

Anya Taylor-Joy

Illyana Rasputin

Alice Braga

Dr. Reyes

Adam Beach

Dani's Father

Happy Anderson

Reverend Craig

Dustin Ceithamer

Smiling Man

Marilyn Manson

Smiling Man (voice)

Thomas Kee

Sam's Father

Colbi Gannett

Young Illyana

Jacinto Vega SpiritWolf

Frozen Cheyenne

Mickey Gilmore

Coal Miner (uncredited)

Jeffrey Corazzini

Coal Miner (uncredited)