Mark's main ambition in life is to become a superhero. When he is not hanging around radioactive materials he enjoys video games, 80s rock music, cups of tea and terrible puns.
Mark is also a budding writer, but still can't get his head around the difference between 'affect' and 'effect'.
Stef brings the science and unbounded charisma to the party as well as being a Level 69 Dungeon Master and a master chef.
He often describes himself as a compulsive liar (although we're not sure if he is telling the truth about that or not).