David Alba as Self - AC Sad Hill Member

Sergio García as Self - AC Sad Hill Member

Diego Montero as Self - AC Sad Hill Member

Joseba del Valle as Self - AC Sad Hill Member

Christopher Frayling as Self - Sergio Leone's Biographer

Peter J. Hanley as Self - Biologist / Author

Eugenio Alabiso as Self - Film Editor (1966)

Sergio Salvati as Self - Assistant Camera Operator (1966)

James Hetfield as Self - Musician

Joe Dante as Self - Filmmaker

Álex de la Iglesia as Self - Filmmaker

Ennio Morricone as Self - Film Composer (1966)

Clint Eastwood as Self - Actor (1966)

Stephen Leigh as Self - Film Critic

Juan José de la Horra as Self - Film Extra (1966)

José Urrutia as Self - Film Extra (1966)

Rafael Solana as Self - Film Extra (1966)

Jean-Pierre Lanoue as Self - Sad Hill Volunteer

Anne-Marie Lanoue as Self - Sad Hill Volunteer

José Luis Martín as Self - Sad Hill Volunteer

Carlo Leva as Self - Assistant Art Director (1966)

Giuditta Simi as Self - Art Director Carlo Simi's Daughter

Sergio Leone as Self - Filmmaker (archive footage)

Willa Ross as Self - Filmmaker (archive footage)

Devan Scott as Self - Filmmaker (archive footage)

Daniel Jeffery as Self - Film Editor (archive footage)