Jonathan Lacey
Cosimo MediciFrank Egerton
The PrompterTatiana Strauss
The First NunLouisa Milwood-Haigh
The Second NunAnna Nieland
The WetnurseGraham Valentine
FamineDiana van Kolck
The MotherLeslie Cuss
The Second TutorRien Kroon
The ChaplainJan Sepers
CarpaccioNils Dorando
The Baby of MâconRichard Blair
The First SoldierTony Dunham
The Second SoldierHumphrey Sallons
Cosimo's ServantHans Bosch
Entourage ServantSjoerd Ghijssen
Entourage ServantMichiel Riedijk
Entourage ServantBert Sevenhuijsen
The DeaconJohn Hartnett
Cynical Auction Bidder (uncredited)