Luís Miguel Cintra as 2nd Lt. Cabrita / Viriato / King John II of Portugal

Miguel Guilherme as Pvt. Salvador / Lusitanian Warrior / Alcácer Warrior

Diogo Dória as Pvt. Manuel / Lusitanian Warrior / Diogo (King John's Cousin)

Luís Lucas as Cpl. Brito / Lusitanian Warrior / Alcácer Nobleman

Carlos Gomes as Pvt. Pedro / Alcácer Warrior

António Sequeira Lopes as Soldier / Lusitanian Warrior / Alcácer Warrior

Mateus Lorena as King Sebastian of Portugal

Lola Forner as Princess Dona Isabel

Raúl Fraire as King Afonso I of Portugal

Ruy de Carvalho as Preacher at Funeral / Suicidal Warrior

Teresa Menezes as Venus

Leonor Silveira as Tethys

Paulo Matos as Radio Operator / Vasco da Gama

Francisco Baião as Prince John

João Bénard da Costa as Baron of Alvito

Luís Mascarenhas as King Afonso V of Portugal

Jorge Rolla as Priest / Wounded Man

José Ramos as Friar Fernando

Ricardo Trêpa as Soldier

Catarina Furtado as Isle of Love Woman

Sofia Sá da Bandeira as Isle of Love Woman

André Gago as Soldier

Ana David as Statue at the Monastery of Batalha

Manoel de Oliveira as Narrator

António Lupi as Soldier

Pepe Ruiz as Soldier

Ángel Gómez as Soldier

Salvador Martos as Soldier

Mateus Cardoso as Soldier

Altino Almeida as Soldier

Jaime Silva as Soldier