The network's three new shows for the fall 2012-13 season will all premiere in October.
Stephen Amell as Oliver Queen and his superhero alter ego. Katie Cassidy, Colin Donnell and David Ramsey also feature in the show.
Torchwood actor John Barrowman was recently cast in a recurring role as a "mysterious" and "well-dressed" man.
Beauty and the Beast stars Kristin Kreuk as a homicide detective whose mother was killed years ago, and Jay Ryan as the 'beast' who saved Kreuk's character at the time of her mother's murder.
Smallville's Brian Peterson and Kelly Souders will executive produce the drama and serve as co-showrunners alongside writers Sherri Cooper and Jennifer Levin.
Meanwhile, Emily Owens, MD is led by Mamie Gummer and tells the story of a first-year intern struggling to deal with the high school-like environment of her Denver Memorial Hospital workplace.
Arrow will debut on The CW on Wednesday, October 10 at 8pm, Beauty and the Beast begins on Thursday, October 11 at 9pm, and Emily Owens, MD gets under way on Tuesday, October 16 at 9pm.
Watch a promo for Arrow below: