Character Name : Narrator (voice)

Original Name : Matthew Modine

Gender : Male

Character Name : Self

Original Name : Ralph Blumenthal

Gender : Male

Character Name : Self (as Lue Elizondo)

Original Name : Luis Elizondo

Gender : Male

Character Name : Self

Original Name : Michio Kaku

Gender : Male

Character Name : Self

Original Name : Tim Burchett

Gender : Male

Character Name : Self

Original Name : Richard Dolan

Gender : Male

Character Name : Self

Original Name : Gary Nolan

Gender : Male

Character Name : Self (archive footage)

Original Name : Edgar D. Mitchell

Gender : Male

Character Name : Self

Original Name : John B. Alexander

Gender : Male