Supergirl Radio | HVFF Interview | Arrow's Katie Cassidy Talks Black Siren Backstory & Meeting Gail Simone

Arrow's Katie Cassidy talks about creating backstory for Earth-2 Laurel Lance a.k.a. Black Siren, meeting DC Comics' Gail Simone, and more at Heroes & Villains Fan Fest, New Jersey. #HVFF #Arrow

Catch Arrow Season 5 on Wednesday, October 5 at 8/7c on The CW!

Follow Katie Cassidy on @MzKatieCassidy, @KatieCassidy (Instagram & Facebook) and follow her fashion site TomBoyKC.com!

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