Key: male female other/diverse
By @astronomyblog & @LoveGraphs. Stats last updated 14 April 2016.
It seems there may have been at least 17 shows and 68 listed appearances. With 4 people per show, Wikipedia has all appearances listed. The host/captains/regulars have included Lee Mack (Host × 17).
Guest appearances i.e. ignoring the host/captains/regulars:
Guests i.e. ignoring the host/captains/regulars:
Last updated: 2016/04/14