Arnold Schwarzenegger
Conan
James Earl Jones
Thulsa Doom
Sandahl Bergman
Valeria
Ben Davidson
Rexor
Cassandra Gava
The Witch
Gerry Lopez
Subotai
Mako
The Wizard
Valérie Quennessen
The Princess
William Smith
Conan's Father
Max von Sydow
King Osric
Franco Columbu
Pictish Scout
Sven-Ole Thorsen
Thorgrim
Nadiuska
Conan's Mother
Jorge Sanz
Young Conan
Luis Barboo
Red Hair
Leslie Foldvary
Sacrificial Snake Girl
Gary Herman
Osric's Guard
Erik Holmey
Turanian War Officer
Akio Mitamura
Mongol General
Jack Taylor
Priest
Kiyoshi Yamasaki
Sword Master
Corrie Jansen
Beautiful Woman Jumping to her Death (uncredited)
Ron Cobb
Black Lotus Street Peddler (uncredited)
Andrea Guzon
Breeding Woman (uncredited)
John Milius
Foodseller in Old City (uncredited)
Olvido Lorente
Guerrera (uncredited)
Celia Milius
High Priestess (uncredited)
Florencio Amarilla
Man (uncredited)
Fabián Conde
Merchant at Tavern (uncredited)
Pilar Alcón
Orgy Slave Girl (uncredited)
Donald Gibb
Osric's Guard (uncredited)
Dragon Dronet
Pit Fighter (uncredited)
Sab Shimono
Subotai (voice) (uncredited)
Isabel Luque
Woman (uncredited)
Diamanda Galás
Witch (voice)