Name	Known for
Dara Ó Briain Self - Presenter (as Dara O Briain) Self - Presenter (as Dara O Briain) See fewer	Mock the Week (2005)
Helen Czerski Self - Reporter (as Dr Helen Czerski) Self - Reporter (as Dr Helen Czerski) See fewer	The Quest for Wonder (2016)
Alok Jha Self - Reporter Self - Reporter See fewer	Fast Ice: Rescue from Antarctica (2014)
Mark Miodownik Self - Reporter (as Prof Mark Miodownik) Self - Reporter (as Prof Mark Miodownik) See fewer	Science Club (2012)
Iya Whiteley Self - UCL Centre for Space Medicine (as Dr Iya Whiteley) Self - UCL Centre for Space Medicine (as Dr Iya Whiteley) See fewer	Science Club (2012)
Josh Widdicombe Self - Special Guest Self - Special Guest See fewer	Josh (2014)
Martin Rees Self - University of Cambridge (as Prof Martin Rees) Self - University of Cambridge (as Prof Martin Rees) See fewer	Enthusiastic Corruption of the Republic: There Is a Madness (2017)
Dirk Anderson Self - 'Space' Volunteer Self - 'Space' Volunteer See fewer	Science Club (2012)
Frank Cucinotta Self - NASA Johnson Space Center (as Dr Frank Cucinotta) Self - NASA Johnson Space Center (as Dr Frank Cucinotta) See fewer	Science Club (2012)
Paul Davies Self - Arizona State University (as Prof Paul Davies) Self - Arizona State University (as Prof Paul Davies) See fewer	Alien Encounters (2012)
Eric Davis Self - IASA (as Dr Eric Davis) Self - IASA (as Dr Eric Davis) See fewer	Science Club (2012)
Al Harrison Self - Emeritus Professor of Psychology (as Prof Al Harrison) Self - Emeritus Professor of Psychology (as Prof Al Harrison) See fewer	Science Club (2012)
Simon Conway Morris Self - University of Cambridge (as Prof Simon Conway Morris) Self - University of Cambridge (as Prof Simon Conway Morris) See fewer	Test of FAITH: Does Science Threaten Belief in God? (2009)
Seth Shostak Self - SETI Institute Self - SETI Institute See fewer	The Day the Earth Stood Still (2008)
Andy Thomas Self - NASA Astronaut (as Dr Andy Thomas) Self - NASA Astronaut (as Dr Andy Thomas) See fewer	The Greatest Air Race (2019)