Tamara Davis
В роли: Self - Professor, University of Queensland

John Ellis
В роли: Self - Professor, CERN, Kings College London (как Prof. John Ellis)

Ron Evans
В роли: Self - Phd., Former Director, Project Greenglow BAE Systems

Dragan Hajdukovic
В роли: Self - Phd., Institute of Physics, Astrophysics & Cosmology, Cetinje, Montenegro

Clifford Johnson
В роли: Self - Professor, University of Southern California

Marc Millis
В роли: Self - Former Manager, NASA Breakthrough Propulsion Physics Project

David O'Brien
В роли: Narrator

Eugene Podketnov
В роли: Self - Phd.

George Schmidt
В роли: Self - Phd., Chief, Propulsion Division at NASA Glenn Research Center

Roger Shawyer
В роли: Self - Aerospace Engineer

Neil Stansfield
В роли: Self - Defense Science and Technology Laboratory, Porton Down

Martin Tajmar
В роли: Self - Professor, Technical University, Dresden