Roman Griffin Davis as Jojo

Thomasin McKenzie as Elsa

Scarlett Johansson as Rosie

Taika Waititi as Adolf

Sam Rockwell as Captain Klenzendorf

Rebel Wilson as Fraulein Rahm

Alfie Allen as Finkel

Stephen Merchant as Deertz

Archie Yates as Yorki

Luke Brandon Field as Christoph

Sam Haygarth as Hans

Stanislav Callas as Russian Soldier

Joe Weintraub as Herr Junker

Brian Caspe as Herr Mueller

Gabriel Andrews as Herr Klum

Billy Rayner as Herr Frosch

Christian Howlings as Bazooka Boy

Gilby Griffin Davis as Clone

Hardy Griffin Davis as Clone

Curtis Matthew as Doctor

Robert East as Herr Grusch

James McVan as American Soldier (uncredited)

Judith Georgi as German Translator (uncredited)

Victoria Hogan as Woman (uncredited)

Bethany Adams as Secretary (uncredited)

Iva Šindelková as Postwoman (uncredited)

Matej Seifert as Soldier (uncredited)

Trish Osmond as Old Woman (uncredited)

Odeta Cali as Gestapo Secretary (uncredited)

Samuel Bogner as Hitlerjugend (uncredited)

Issy Stewart as Kissing Girl (uncredited)