Keith David

Self - Narrator

Adriano Giannini

Self - Leonardo da Vinci

Francis C. Wells

Self

Guillermo del Toro

Self

Serge Bramly

Self - author of 'Léonard de Vinci: Une biographie'

Adam Gopnik

Self

Carlo Vecce

Self - author of 'Leonardo, la vita'

Charles Nicholl

Self - author of 'Leonardo da Vinci: The Flights of the Mind'

Farago Claire

Self

Ingrid Rossellini

Self - professor of Italian Literature

Vincent Delieuvin

Self

Timothy Verdon

Self

Ross King

Self - author of 'Leonardo and the Last Supper'

Francesca Borgo

Self

Kerry James Marshall

Self

Walter Isaacson

Self - author of biography 'Leonardo da Vinci'

Carmen Bambach

Self