Рэйчел Крэйн
В роли: Self - Correspondent

Mike O'Hare
В роли: Self - Lead Manager, London Array (segment "London")

Dennis Hayes
В роли: Self - President and CEO, Bullitt Foundation (segment "Seattle")

Michael Feldman
В роли: Self - VP of Engineering, BigBelly Solar (segment "Philadelphia")

Donald Carlton
В роли: Self - Deputy Chief Commissioner (segment "Philadelphia")

Erin Burnett
В роли: Self - Correspondent

Tony Mallows
В роли: Self - City Director, Masdar City (segment "United Arab Emirates")

Mohamed Alabbar
В роли: Self - Chairman, Emaar Properties (segment "Dubai")

Sandra Richter
В роли: Self - MIT Media Lab Visiting Scientist (segment "Boston")

Bob Yamada
В роли: Self - San Diego County Water Authority (segment "San Diego")

Peter MacLaggan
В роли: Self - Poseidon Resources Corporation (segment "San Diego")

Scott Kennedy
В роли: Self - Sergeant, LAPD (segment "Los Angeles")

John Romero
В роли: Self - Captain, LAPD (segment "Los Angeles")

Peter Bibring
В роли: Self - ACLU of Southern California (segment "Los Angeles")

Nicholas O'Brien
В роли: Self - NYC Office of Data Analytics (segment "New York City")

Alex Winter
В роли: Self - CEO & Founder, Placemeter (segment "New York City")

Florent Peyre
В роли: Self - COO & Co-Founder, Placemeter (segment "New York City")