Olivia Horsfall Turner
В роли: Self - Presenter (как Dr Olivia Horsfall Turner)

Norman Foster
В роли: Self - Foster + Partners (как Lord Norman Foster)

Brett Steele
В роли: Self - Architectural Association

Eric Kuhne
В роли: Self - Architect, Civic Arts

Kate Colquhoun
В роли: Self - Joseph Paxton's Biographer

Isobel Armstrong
В роли: Self - Birkbeck College, London (как Emeritus Professor Isobel Armstrong)

Theodora Waite
В роли: Self - Great Great Grand-daughter of Joseph Paxton

Charlie Burke
В роли: Self - Glass Blower

David Martlew
В роли: Self - Glass Technologist

John Minnis
В роли: Self - Architectural Investigator

Geoffrey Jellicoe
В роли: Self - Architect of 'Motopia' (хроника) (как Sir Geoffrey Jellicoe)

Hal Moggridge
В роли: Self - Architect

Kathryn Moore
В роли: Self - Landscape Architect