Target... Earth?

Victor Buono

Homer The Archivist

Рик Овертон

Ino The Computer (voice)

Карл Саган

Self

Айзек Азимов

Self

Eugene Cernan

Self (archive footage)

Bernard J. Carr

Self (as Dr. Bernard Carr)

Frank Drake

Self (as Dr. Frank Drake)

Ronald E. Evans

Self (archive footage)