Pay the Piper

Synopsis
When Godspeed returns, Barry turns to Hartley Rathaway for help. However, things get tense quickly after Barry realizes one of the changes from Crisis is that The Flash and Pied Piper are now enemies. Meanwhile, Iris tries to escape the Mirrorverse.

Main/Featured Characters

 * Team Flash
 * The Flash (Barry Allen)
 * Cisco Ramon
 * Frost
 * Ralph Dibny
 * Nash Wells
 * Cecile Horton
 * Allegra Garcia
 * Joe West
 * Team Citizen
 * Iris West-Allen
 * Kamilla Hwang
 * Pied Piper (Hartley Rathaway)
 * Pied Piper (Hartley Rathaway)

Villains

 * Eva McCulloch's Team
 * Eva McCulloch
 * Eva McCulloch

Organisations

 * S.T.A.R. Labs
 * McCulloch Technologies
 * McCulloch Technologies
 * McCulloch Technologies

Species

 * Humans
 * Meta-Humans
 * Clones
 * Clones

Objects

 * The Flash Suit
 * Pied Piper Suit
 * Sonic Gauntlet
 * Harrison Nash Wells' Gauntlet
 * Techno Fanny Pack
 * Guns
 * Speed Gauge
 * Uncaged Desire
 * Artificial Speed Force Machine
 * Speed Gauge
 * Uncaged Desire
 * Artificial Speed Force Machine
 * Uncaged Desire
 * Artificial Speed Force Machine
 * Artificial Speed Force Machine
 * Artificial Speed Force Machine

Locations

 * Earth-Prime
 * Earth
 * United States of America
 * Missouri
 * Central City
 * S.T.A.R. Labs Central City Facility
 * Pipeline
 * Bentley Building
 * Hartley Rathaway's Hideout
 * Caitlin Snow's Apartment
 * Iron Heights Penitentiary
 * Mirrorverse
 * Central City
 * McCulloch Technologies
 * Central City
 * McCulloch Technologies
 * McCulloch Technologies

Trivia

 * The title references the fact that Team Flash paid the piper (Hartley) by saving his boyfriend's life.
 * When Godspeed fights Barry and knocked him off, the animation of their fight is the same used in the Into the Void episode but is also completely opposite.
 * This time, the fight takes place during the night.
 * The roles of who chased and who's hunted are also reversed since Godspeed was now the one that hunted Barry instead of the other way around.
 * This episode used some archive footage from The Sound and the Fury to explain why Hartley hated Team Flash.