Fred Myton

Sasha Bogolyubova

饰：Marie Curie

Hayden Finkelshtain

饰：Nikola Tesla

Brett Jubinville

饰：Sigmund Freud

Matt Servo

饰：Charles Darwin

Ajay Fry

Ajay Fry

饰：Additional Characters

Yuri Gorbachow

饰：Russian Narrator

Joe Ciaravino

饰：Thomas Edison

尼尔·德格拉塞·泰森

Neil deGrasse Tyson

饰：Self