H. Jay Melosh

饰：Himself - University of Arizona Lunar & Planetary Laboratory

John Oxford

饰：Himself - University of London

Frank Close

饰：Himself - Oxford University

Craig Court

饰：Scientist

Allan Edwards

饰：German Dad

Yvonne Edwards

饰：German Mum

Zoe Elliott

饰：Virus Woman

Alun Taylor

饰：Pilot

布莱恩·考克斯

Brian Edward Cox

饰：Self - Manchester University,(as Dr. Brian Cox)

格伦·康洛伊

Glenn Conroy

饰：Dr. Howell

Bill McGuire

Bill McGuire

饰：Self - Benfield Greig Hazard Research Centre, UCL,(as Prof. Bill McGuire)

史蒂文·戈麦斯

Steven Gomez

饰：Coastguard