The Flash (2014) - S02E17
After discovering the true identity of Zoom, Barry is more determined than ever to stop him. To increase his speed, Barry goes back in time to look for help from an arch nemesis.
The Flash cast: professionals. The Arrow cast: let's see...Paul, professional; Willa, being funny playing up the adorable; Emily and John, false tonsil hockey to make every man jealous; THE STAR OF THE FRICKING SHOW, his favorite baseball hat on his phone laughing at his life/friends.