The Flash [Barry Allen]; Shrapnel [Mark Scheffer]; unidentified crime boss (Shrapnel's boss); Road Reapers (motorcycle speed gang, deaths); unnamed older security guard; unnamed younger security guard; unnamed commuters; unnamed police officers; unnamed perp; unnamed CCPD crime lab staff; James Forrest; Professor Zoom [Reverse-Flash; Eobard Thawne] (flashback); Ramsey Rosso; Kristen Kramer; Director David Singh; Detective Burns; Detective Morrow
Synopsis
Barry's exposure to the negative speed force has altered his powers and his speed now has dangerous side effects, as Flash discovers as he battles the high speed motorcycle gang the Road Reapers. Director Singh assigns Barry and Kristen to work with detectives Burns and Morrow to investigate the disappearance of evidence from the CCPD crime lab.