Narrator (voice)
Self - Volcanologist
Self - Transportation Dept
Self - Philosopher, Forklift Driver
Self - Glaciologist
Self - Filmmaker, Cook
Self - Survival School Instructor
Self - Nutritional Ecologist
Self - Physiologist
Self - Journeyman Plumber
Self - Cell Biologist
Self - Zoologist
Self - Linguist, Computer Expert
Self - Traveler, Computer Expert
Self - Utility Mechanic
Self - Multiple World Record Holder
Self - Marine Ecologist
Self - Volcanologist, Geochronologist
Self - Physicist
Self - (archive footage)
Self - General Assistant