Roy Harper and Brother Blood are featured alongside Oliver Queen. Plus, last night's 'The Scientist' set a season high ratings mark.
Grant Gustin returns as Barry Allen in the second half of this two-part midseason finale. 'Three Ghosts' airs Wednesday, December 11th.
Grant Gustin makes his debut as Barry Allen in tonight's episode 'The Scientist.' Watch as this Central City scientist makes an awkward entrance.
Executive producer Andrew Kreisberg talks about the casting search to find this character. 'The Scientist' airs Wednesday, December 4th on The CW.
The speedy Barry Allen may be Oliver Queen's only hope. The first part of this two-night finale, The Scientist, airs Tuesday, December 4th.
Guest star Graham Shiels plays Cyrus Gold, Grundy's name before he dies and becomes a zombie. 'Three Ghosts' airs Wednesday, December 11th.
Grant Gustin portrays the Central City police scientist. The all-new episode airs Wednesday, December 4 on The CW.
The 'other' daughter of Ra's al Ghul will be coming to Starling City to chase down The Canary. She is one of many new DC Comics characters to join the show.
He'll first wear the mask on the December 11th episode Three Ghosts. The executive producers explain why they went with this look.
The character debuts in The Scientist, airing Wednesday, December 4th on The CW. Barry Allen also appears in Three Ghosts on December 11th.