Graviton is an arch enemy of S.H.I.E.L.D. and the Avengers.
Frank Hall was working as a scientist for S.H.I.E.L.D. as an experiment allowed him to control gravity. Nick Fury locked graviton up in the raft for 5 years after graviton almost killed two doctors,but graviton escaped during the first breakout and battled the Avengers. After being defeated by the Avengers graviton was re-captured and sent to the vault. He has had many incounters with the avengers and nick fury.
Can control gravity.
Real name: frank hall
Height: 6 ft.Weight: 210 lbs.