Arrow: Over 20 Images From “The Scientist” – With Grant Gustin As Barry Allen!

The December 4 episode of Arrow features the first appearance of Grant Gustin as Barry Allen, a police scientist and “The Scientist” in the episode’s title.

Grant will appear in two episodes of Arrow before going on to his own spin-off pilot next year that will hopefully lead into a Flash series.

These new promotional images also feature a few more surprises – more Summer Glau as Isabel Rochev, but hey – look at Moira Queen, looking glamorous and not in prison. We have a feeling there are even more things about “The Scientist” that they’re keeping under wraps, too… needless to say, this is a big one, so mark your calendars for December 4.

(Also, you’re following the @FlashTVNews Twitter now, right? Good.)

ARROW

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Arrow -- "The Scientist" -- Image AR208b_0343b -- Pictured (L-R): Stephen Amell as Oliver Queen and Grant Gustin as Barry Allen -- Photo: Cate Cameron/The CW -- © 2013 The CW Network. All Rights Reserved