Self - Narrator (archive sound)

David Attenborough

Acting

Self - Narrator (archive sound)

Sean Carroll

Acting

Self - Narrator (archive sound)

Craig Childs

Acting

Self - Narrator (archive sound)

Brian Cox

Acting

Self - Narrator (archive sound)

Alex Filippenko

Acting

Self - Narrator (archive sound)

Stephen Hawking

Acting

Self - Narrator (archive sound)

Michio Kaku

Acting

Self - Narrator (archive sound)

Lawrence Krauss

Acting

Self - Narrator (archive sound)

Janna Levin

Acting

Self - Narrator (archive sound)

Phil Plait

Writing

Self - Narrator (archive sound)

Martin Rees

Acting

Self - Narrator (archive sound)

Michelle Thaller

Creator

Self - Narrator (archive sound)

Neil deGrasse Tyson

Acting

Self - Narrator (archive sound)

Mike Rowe

Acting