Discover
Will Lyman
Himself - Narrator
Harry Carson
Himself
Steve Fainaru
Himself
Mikey Collins
Himself - University of Pittsburgh Medical Center
Bennett Omalu
Himself - Medical Examiner
Ann McKee
Herself - Neuropathologist, BU CTE Center
Stan Savran
Himself - Pittsburgh Sports Reporter
Julian Bailes
Himself - Team Physician, Steelers, 1988-97
Jim Otto
Himself
Mike Webster
Himself (archive footage)
Steve Young
Self
Troy Aikman
Self (archive footage)
Leigh Steinberg
Self
Christopher Nowinski
Self
Crew
Ben McCoy
Cinematography
Directing
Michael Kirk
Director
Crew
Ben McCoy
Cinematography
Directing
Michael Kirk
Director