Graviton (Franklin Hall)

Franklin Hall is a Canadian physicist involved in an experiment in a private research facility in the Canadian Rockies. A mistake in Hall's calculations causes graviton particles to merge with his own molecules, and Hall later discovers that he can mentally control gravity. Hall at first tries to hide his newfound ability, but becomes tempted by the potential power, and donning a costume adopts the alias "Graviton."

He has been affiliated with A.I.M. and has battled the Fantastic Four, The Avengers, The Thunderbolts and others over the years.