Darsteller und CrewWill LymanHimself - NarratorAnn McKeeHerself - Neuropathologist, BU CTE CenterHarry CarsonHimselfMichael KirkRegisseur:in, Schreiber:inSteve FainaruHimselfMark Fainaru-WadaSchreiber:inSteve AudetteRedakteur:inBen McCoyKinematografieJohn E. LowMusikMickey CollinsHimself - University of Pittsburgh Medical Center