Kurt Bell

饰：Himself

Robert R. Bell

饰：Josiah King

Len Caric

饰：Harvey Childs

Tom Crouch

饰：Himself

William Fickinger

饰：Himself

George Gatewood

饰：Himself

Art Glaser

饰：Himself

Jay Keenan

饰：John Brashear

Daniel V. Klein

饰：Professor Lewis Bradley

Henry Lenard

饰：Dr. James Keeler

Demetria Marsh

饰：Julia Smith Brashear

大卫·康拉德

David Conrad

饰：自己

Nick LaMantia

饰：自己

Cain Alexander

Cain Alexander

饰：Young Samuel Langley

Eli Tokash

Eli Tokash

饰：Young John Langley

杰夫·莫纳汉

Jeff Monahan

饰：Dr. Samuel Pierpont Langley

尼尔·德格拉塞·泰森

Neil deGrasse Tyson

饰：Self