Hakeem Oluseyi
饰：Self - Astrophysicist
Roberta Setzu
饰：Lisa Martines
Anthony D. Call
饰：Self - Narrator
London Culbertson
饰：Arzu (Toddler)
Leslie Garza
饰：Co-worker 2
Seth Shostak
饰：Self - Senior Astronomer, SETI Institute
Kevin R. Grazier
饰：Self - Planetary Scientist
Jeffrey L. Bada
饰：Self - Distinguished Professor of Marine Chemistry, UCSD
Doug Vakoch
Ray Chao
Ray Chao
饰：Chief Asian Astronomer
Nathalie Söderqvist
Nathalie Söderqvist
饰：Soccer Mom
Justin Nesbitt
饰：Protestor 1
Dolly Gray
饰：Dancer 1
Bobbie Jo Woolbright
饰：Zora
Franco Calabrese
饰：Military Scientist 2
Harrison Schick
饰：Sam (10)
Mark Mos
饰：Extra 3
Valeriya Borisova
Valeriya Borisova
饰：Sales Woman
Christian Schick
饰：Russell (10)
Jonathan Adam Cousens
Jonathan Adam Cousens
饰：Cop 2
Heather Harvin
饰：Friend 3
Mario Mabe
饰：Military Mean Man
Katherine Franta
饰：20 Something 3
Adrienne Marquand
饰：Mom
Rod Roddenberry
饰：Self - CEO, Roddenberry Entertainment
Hannah Johnson
Hannah Johnson
饰：School Girl
Reshaun Jones
饰：Basketball Player
James Clayton
James Clayton
饰：Visitor
Dimitra Jiova
饰：Damla
Katie McClave
饰：Bree - Hybrid Child
Greg Duncan
Greg Duncan
饰：Extra 2
Alan Dean Foster
饰：Self - Author
Dean Morrison Madera
饰：School Student
Eddie Caldwell
饰：Talk Show Host
Rochelle Belle
饰：News Anchor 1
普雷斯顿·布罗德里克
Preston Brodrick
饰：Sam Baby
David Gerrold
饰：Self - Author
大卫·布林
David Brin
饰：Self - Astronomer, Author
Nicole Nasca Supercinski
Nicole Nasca Supercinski
饰：Hospital Orderly
Kevin Burney
饰：Brid Kid 6
Elle Gabriel
饰：Kid 3
Tomoko Karina
Tomoko Karina
饰：Reporter 2
Eduardo Reyes
饰：Gokers Asst
Amber Kloss
饰：Orphanage Manager
Howard Cai
Howard Cai
饰：20 Year Old 3
Madison Dae Clarion
饰：Brid
Calvin Zwicker
饰：Kid 2
Joshua Eli
饰：20 Something 1
Ewa Kozak
饰：Protestor 8
Haley Beedle
饰：Extra 1
Lee Cronin
饰：Self - Gardiner Professor of Chemistry, University of Glasgow
Laurence Garvie
饰：Self - Curator, Center for Meteorite Studies
Merri Jamison
饰：Nurse
Kristel Kovner
饰：Teacher
Gene Richards
Gene Richards
饰：Patient
Charles Campos
饰：Patient