- Paul Darrow - Voice-over Artist
- Caroline Bernstein - Voice-over Artist
- Joseph Goebbels - Self (archive footage)
- Magda Goebbels - Self (archive footage)
- Heinrich Himmler - Self (archive footage)
- Simone Huber - (voice)
- Goran Kostić - Gavrilo Princip (voice)
- Benito Mussolini - Self (archive footage)
- Fredrick Ruth - Gottlieb Daimler (voice)
- Nelson Mandela - Self (archive footage)
- Martin Luther King Jr. - Self (archive footage)
- Stephen Beckett - Narrator (voice)
- Michael Sun Lee - Yoshito Matsushige
- Michael J. Reynolds - General J. T. Farrel
- James Hicks - (voice)
- Eiji Kusuhara - (voice)
- Patrick Poletti - (voice)
- James Bryce - Tsar Nicholas
- Winston Churchill - Self (archive footage)
- Mikhail Gorbachev - Self (archive footage)
- Erich Honecker - Self (archive footage)
- Iósif Stalin - Self (archive footage)
- Victor Sobchak - (voice)
- Ross Waiton - (voice)
- Simon Coury - Jean-François Champollion
- Waleed Elgadi - PFLP Guerilla Soldier
- Ken Freehill - Richard Nixon
- Grant James - Priest
- Laura Yonker Myers - Jacqueline Kennedy
- David Bedella - (voice)
- Ian Porter - (voice)
- Colin Stinton - (voice)
- John F. Kennedy - Self (archive footage)
- Chris Rogers - Oberkommandant
- Chris Rogers - Joseph Sewald
- Richard Nixon - Self (archive footage)
- Lyndon B. Johnson - Self (archive footage)
- Gerald Ford - Self (archive footage)
- Betty Ford - Self (archive footage)
- Tim Perrin - Kemp
- Daniel André Pageon - Jean Franchi
- Peter Forbes - Brian Walpole
- Olivia Fox - Carol Berman
- Abigail Leigh - Glennis Yeager
- Kathryn Akin - Glennis Yeager (voice)
- Adrian Fear - Guglielmo Marconi
- Adrian Fear - Sir Edward Hulse
- Leighton Haberfield - Flight Engineer
- Mark McKerracher - Roger Boisjoly
- Dickon Tolson - Charlie Nielsen
- Christa McAuliffe - Herself - astronaut (archive footage)
- Ronald Reagan - Himself (archive footage)
- Patrick Allen - Sir John French
- Alan Booty - German Soldier
- Rio Fanning - Horace Smith-Dorrien
- Peter Guinness - Narrator (voice)
- Philip Brodie - Bruce Reynolds (as Phil Brodie)
- Michael Ryan - David Whitby
- Tim Smith - Roy James
- David Upshal
Ian Holm interpreta a Narrator (voice) en la serie.
Stephen Beckett hace el papel de Narrator (voice).
Chris Rogers hace el papel de Oberkommandant.
Adrian Fear interpreta a Guglielmo Marconi en la serie.
Peter Guinness interpreta a Narrator (voice) en la serie.
Capítulo disponible en las siguientes plataformas:
