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Doc Sensation

Age: 37
Point of Origin: Los Angeles
Powers: Metaliquid body
His liquid body makes him highly resistant to harm, as he is capable of reforming any injury merely by thinking about it. While he naturally holds a human shape out of habit, he can distort himself into a sheet of liquid approximately 1mm thick, or extend parts of his liquid physiology up to 100m before losing control over it. With intense concentration he can turn into a fine mist covering an entire room.
He no longer needs to eat, breathe or sleep.
Skills: Physics, Chemistry, Engineering, Basic Martial Arts
Threat Level: 6

Craig Duncan was first given the nickname "Doc Sensation" at high school, due to his astounding aptitude at all subjects, particularly science and maths, but also in mockery of his dour and humourless attitude towards his work.

After completing a PhD in Physics in record time at UCLA he established a private company with his brother Roddy and university sweetheart Zoe Clarke to investigate interdimensional teleportation. The pedestrian name of Intertech Pty. Ltd. was dropped by the press in favour of the "Fantastic Three", as Time magazine dubbed the young entrepreneurs.
The initial test of this equipment went horribly wrong as the creature called Negasus entered their lab, destroying the three scientists and a hapless pizza delivery boy in the process. However the fundamental energies pouring through from Negasus' Realm Zero transformed them into the elemental heroes now known as the Challengers.
Using their new-found powers, the Challengers managed to send Negasus back to his own realm, and have operated as one of America's premiere independent super-teams since then.

Craig and Zoe Clarke were nearest the explosion that granted the Challengers their powers, and as such were permenently transformed. Craig is no longer able to revert to flesh and blood form.