All of our participants are VIP's but here are a few you may recognise.
First Minister of Wales Mark Drakeford
Iwan Rheon. Not quite the iron throne but near enough perhaps?
Stephen Speed, Head of Nuclear for BEIS
Dr. Mark Taylor, DD for Energy Innovation BEIS
Prof. Ron Loveland, Energy advisor for Welsh Government.
Miss Swansea Earth 2017
Alun Cairns MP Minister for Wales
Welsh Rugby Star: Gareth Davies
Welsh Rugby Star: Dan Lydiate