20 Photos from Episode 19 of The Flash – Who is Harrison Wells?

Harrison Wells

The CW has released 20 photos from the 19th episode of “The Flash,” titled “Who is Harrison Wells?”

In the episode, Joe (Jesse L. Martin) and Cisco (Carlos Valdes) head to Starling City to continue their investigation of Dr. Wells (Tom Cavanagh). While in town, the duo enlists the help of Captain Lance (guest star Paul Blackthorne), and Cisco meets the Black Canary (guest star Katie Cassidy), who asks him for a favor. Meanwhile, back in Central City, Barry (Grant Gustin) races to catch a meta-human named Hannibal Bates (guest star Martin Novotny) who can transform himself into every person he touches — which includes Eddie (Rick Cosnett), Iris (Candice Patton), Caitlin (Danielle Panabaker) and even The Flash.

Wendey Stanzler directed the episode written by Ray Utarnachitt & Cortney Norris. “Who is Harrison Wells?” will air on April 21.