Marc D. Rayman

饰：Himself, NASA

Michael Dennin

饰：Himself

Jeanne Cavelos

饰：Herself

Kurt Liewer

饰：Himself

Todd Barber

饰：Himself - Propulsion Engineer, NASA-JPL

James Fallon

饰：Himself

Campbell Aird

饰：Himself

Wytze Van Der Veer

饰：Himself

Cynthia Breazeal

饰：Herself

戴夫·霍夫曼

Dave Hoffman

饰：Narrator,

罗布·科尔曼

Rob Coleman

饰：Self

洛尔恩·彼得森

Lorne Peterson

饰：Self