If these new posters from the CW's second season of Arrow are any indication, then newcomer Grant Gustin better renew that gym membership.  The Glee star was recently added to the show's line-up as Barry Allen, aka The Flash.  While he'll only show up in three of the season's episodes, he'll have to hold his own against star Stephen Amell and co-stars David Ramsey, Colton Haynes and Manu Bennett (what, no Paul Blackthorne?), who show off their chiseled physiques in this new batch of Arrow posters.  The CW sure does know their demographic!

Arrow returns for its second season on Wednesday, October 9 at 8/7 PM CT on the CW.  Hit the jump to check out the posters. 

The new batch of Arrow posters follows below.  There's another poster installment coming up in a few weeks, so fingers are crossed for Katie Cassidy, Willa Holland and Emily Bett Rickards.

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