威廉·夏特纳

William Shatner

饰：Self - Host

Tracy Drain

饰：Self - NASA Flight Engineer, Juno Mission

Meghan Duffy

饰：Meghan Duffy

乌比·戈德堡

Whoopi Goldberg

饰：Self - Actor & Television Personality

塞思·麦克法兰

Seth McFarlane

饰：Self - Film & Television Producer

杰森·亚历山大

Jason Alexander

饰：Self - Actor & Director

大卫·铃木

David Suzuki

饰：Self - Scientist, Environmentalist & Broadcaster

本·斯蒂勒

Ben Stiller

饰：Self - Actor & Filmmaker

吉恩·罗登贝瑞

Gene Roddenberry

饰：Self - Writer & Producer,(archive footage)

尼尔·德格拉塞·泰森

Neil deGrasse Tyson

饰：Self - Astrophysicist

加来道雄

Michio Kaku

饰：Self - Theoretical Physicist & Futurist

Mike Lazaridis

饰：Self - Founder, Perimeter Institute

史蒂芬·霍金

Stephen Hawking

饰：Self - Theoretical Physicist