출연진
Gregory Patrick Agnew
Grandpa
Roman Spenneberg
Physicist (Age 15)
Jax Inman
Physicist (Age 8)
Brodie McCauley
Physicist
Olivia Jones
Ship Captain
Jezreel Forand
Ship Engineer
Nicholas Poppe
Ship Pilot
Sofia Spenneberg
Guardian Angel (voice)
Ian Papworth
Distorted voice (voice)
Adam S. Depew
Spirit (voice)
마틴 루터 킹 주니어
Self (archive footage)
칼 세이건
Self (archive footage)
Johnny Cash
Self (archive footage)
June Carter Cash
Self (archive footage)