 Cédric ZimmerlinHimself - Narrator (voice) | Himself - Narrator (voice) |
 Philippe OhrelJohannes Gutenberg | Johannes Gutenberg |
 Xavier BoulangerJohannes Fust | Johannes Fust |
| CCristiano NoceraEnea Silvio Piccolomini | Enea Silvio Piccolomini |
| MMarc SchweyerGeorg Dritzehn | Georg Dritzehn |
 Tim Berners-LeeHimself - Computer Scientist | Himself - Computer Scientist |
 Guy BechtelHimself - Historian | Himself - Historian |
| SStephan FüsselHimself - Philologist | Himself - Philologist |
| BBenoît JordanHimself - Archive Curator | Himself - Archive Curator |
| PPierre MonnetHimself - Historian | Himself - Historian |
| OOlivier DeloignonHimself - Typography Historian | Himself - Typography Historian |
| GGeorges BischoffHimself - Historian | Himself - Historian |
| LLaurent HéricherHimself - BNF Curator | Himself - BNF Curator |
| CCornelia SchneiderHerself - Museum Curator | Herself - Museum Curator |
| BBettina WagnerHerself - Library Curator | Herself - Library Curator |
| MMario InfeliseHimself - Book Historian | Himself - Book Historian |
| GGeneviève GuilleminotHerself - BNF Curator | Herself - BNF Curator |
| JJohannes BergerhausenHimself - Graphic Design Professor | Himself - Graphic Design Professor |
| JJohannes MangeiHimself - Library Curator | Himself - Library Curator |
| JJohanna RachingerHerself - Library Director | Herself - Library Director |
