Hrund Gunnsteinsdottir
В роли: Self / Narrator

Kristín Ólafsdóttir
В роли: Self

Bill George
В роли: Self - Harvard Business School professor

Iris Bohnet
В роли: Self - Professor at the John F. Kennedy School of Government

Iain Mcgilchrist
В роли: Self - Author of 'The Master and His Emissary: The Divided Brain and the Making of the Western World

Marti Spiegelman
В роли: Self - Shaman

Enric Sala
В роли: Self - Marine Ecologist

Tan Le
В роли: Self -CEO and founder of neuroinformatics company EMOTIV

Марина Абрамович
В роли: Self

Malidoma Patrice Somé
В роли: Self

Virginia Prescott
В роли: Self (голос) (хроника)

Jamin Warren
В роли: Self (голос) (хроника)

Малала Юсуфзай
В роли: Self (хроника)

Daniel L. Shapiro
В роли: Self - Director of the Harvard International Negotiation Program (как Daniel Shapiro)

Faye Allen-Norris
В роли: Self - Addison Primary School Teacher

Shyloh Robinson
В роли: Self - Addison Primary School Student

Lorenzo Robinson
В роли: Self - Addison Primary School Student

René Harvey
В роли: Self - Shyloh Robinson's Father

Jonathan Harris
В роли: Self - Co-creator of Interactive Website We Feel Fine

Chor Boogie
В роли: Self - Chor Boogie (как Art featured in Documentary)

Högni Egilsson
В роли: Self

Dadi Janki

Jack Johnston
В роли: Self

Yasmin Selha
В роли: Self