Derek Muller

饰：Himself - Host

Andrew Rochford

饰：Himself

Destin Sandlin

饰：Himself

Samy Kamkar

饰：Himself

Bruce Benamran

饰：Himself

约翰·格林

John Green

饰：Himself

Jorge Cham

Jorge Cham

饰：Himself

Rachel Robbins

饰：Herself

Jean-François Clervoy

饰：Himself

理查德·道金斯

Richard Dawkins

饰：Himself

Simon Pampena

饰：Himself

Rodney Fox

饰：Himself

尼尔·德格拉塞·泰森

Neil deGrasse Tyson

饰：Himself

汉克·格林

Hank Green

饰：Himself

Vi Hart

饰：Herself

Fiona Ginty

饰：Herself

克里斯蒂娜·奥乔亚

Christina Ochoa

饰：Herself

Sune Nielsen

饰：Himself