Sam Worthington as Perseus

Liam Neeson as Zeus

Ralph Fiennes as Hades

Rosamund Pike as Andromeda

Bill Nighy as Hephaestus

Edgar Ramírez as Ares

Toby Kebbell as Argenor

Danny Huston as Poseidon

Sinéad Cusack as Clea

John Bell as Helius

Lily James as Korrina

Alejandro Naranjo as Mantius

Freddy Drabble as Apollo

Kathryn Carpenter as Athena

Matt Milne as Elite Guard No. 1

Birkett Turton as Elite Guard No. 2

Spencer Wilding as Minotaur

Juan Reyes as Prison Warden

Jorge Guimerá as Theodulus

Asier Macazaga as Theron

Daniel Galindo Rojas as Eustachius

Lamberto Guerra as Timon

George Blagden as Soldier 1

Killian Burke as Soldier 2

Alastair Cording as Villager 1

Caoilfhionn Dunne as Woman 1

Martin Bayfield as Cyclops

Paul Warren as Hermes (uncredited)

JD Roth-Round as Spartan Archer / Argos Warrior (uncredited)