Reparto

profile
Will Lyman
Himself - Narrator
profile
Harry Carson
Himself
profile
Mikey Collins
Himself - University of Pittsburgh Medical Center
profile
Bennett Omalu
Himself - Medical Examiner
profile
Ann McKee
Herself - Neuropathologist, BU CTE Center
profile
Stan Savran
Himself - Pittsburgh Sports Reporter
profile
Julian Bailes
Himself - Team Physician, Steelers, 1988-97
profile
Jim Otto
Himself
profile
Mike Webster
Himself (archive footage)

Fotos