Julian Barratt (Self - Narrator), Sjors Allersma (Self - Engineer of the Quay Wall of the Port of Rotterdam), Carlijn Bodewes (Self - Head of Sales & Finances at Royal Bodewes Shipyard), Janwillem Breider (Self - Bridge Engineer at the Galecopperbridge in Utrecht), Anetta de Jong (Self - Castle Director of Foundation Kasteel De Haar), Guillaume Henry (Self - Site Foreman at the Galecopperbridge in Utrecht), Robert Hoffman (Self - Water Millers of Stichting Werelderfgoed at Kinderdijk), Stephan Keizer (Self - Project Engineer at the Zuidas in Amsterdam), Arne Lijbers (Self - Terrace Tower Architect), Kim Oosterom (Self - Project Manager for Duijvestijn Tomatoes)