Emily Bett Rickards will guest star as Felicity Smoak on The Flash’s October 28 episode, The CW revealed this afternoon.
That information caused the network to release an updated synopsis of the episode, titled “Going Rogue,” which will feature Captain Cold (played by guest star Wentworth Miller), to account for Felicity’s appearance.
You can check out the updated synopsis below.
The Flash stops a robbery but the culprits get away after shooting a guard, and The Flash chooses to save the man instead of following the criminals. Joe shows Barry a book of suspects and Barry identifies Leonard Snart as the leader of the group. While investigating the case, Barry gets a surprise visit from an old friend – Felicity Smoak, who heard about his new abilities and came to check them out for herself. She joins him at S.T.A.R. Labs to help stop Snart after it’s revealed that Snart his gotten his hands on a stolen “cold gun,” which could kill The Flash. Dr. Wells is furious when he finds out that Cisco built the cold gun without telling anyone and now it’s missing. Meanwhile, Iris is getting the silent treatment from Joe because of her relationship with Eddie. Finally, The Flash and Captain Cold have an epic confrontation.