Target... Earth?

Victor Buono

Homer The Archivist

Rick Overton

Ino The Computer (voice)

Карл Саган

Self

Айзек Азімов

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)