Cavanagh returns as Eobard Thawne, a.k.a.
the Reverse-Flash, in the May 24 episode, “A New World, Part Four.”
The Flashairs Wednesdays at 8 p.m. ET/PT on the CW.

Tom Cavanagh returns in ‘The Flash’ series finale as Eobard Thawne, a.k.a. the Reverse-Flash.Jack Rowand/The CW