Véronique Préault as Narrator (voice)

Bruno Magne as Jules Verne (voice)

Stephan Kalb as

Violaine Sautter as Self - Geologist

Þorvaldur Þórðarson as Self - Volcanologist

Hélène Bureau as Self - Mineraologist

Benoît Ildefonse as Self - Geologist

Kai-Uwe Hinrichs as Self - Geochemist

Bénédicte Ménez as Self - Geomicrobiologist

Emmanuelle Gérard as Self - Geomicrobiologist

Mathilde Cannat as Self - Geochemist

Nathalie Bolfan-Casanova as Self - Geochemist

Jean-Paul Montagner as Self - Seismologist

Stéphane Gaffet as Self - Director of LSBB

Denis Andrault as Self - Geophysicist

Mohamed Mezouar as Self - Physicist

Giuseppe Salerno as Self - Volcanologist