Tom Payne as Rob Cole

Ben Kingsley as Ibn Sina (Avicenna)

Stellan Skarsgård as Barber

Olivier Martinez as Shah Ala ad Daula

Emma Rigby as Rebecca

Elyas M'Barek as Karim

Fahri Yardım as Davout Hosein

Makram J. Khoury as Imam

Michael Marcus as Mirdin

Stanley Townsend as Bar Kappara

Emil Marwa as Tuveh Ben Meir

Martin Hancock as Merlin

Adam Thomas Wright as Rob Cole (10 Years)

Jodie McNee as Agnes Cole

Dominique Moore as Despina

Aidan Kelly as Priest

Mohamen Mehdi Ouazanni as Mirdin's Father

Fatima Herandi Raouya as Mirdin's Mother

Rabii Benjhail Tadlaoui as Jew in Caravan

Peter Bankolé as Mano Dayak

Renu Setna as Quasim

Franz Dinda as Merlin's Apprentice

Ramin Yazdani as Rabbi

Sahin Eryilmaz as Fat Hakim

Vincent Ebrahim as Tughrul

Michael Jibson as Stratford Monk