wgKeHgQYGV8Arrow Season 4 Episode 13: Sins of the Father Review Chike February 11, 2016 TV Series Oliver (Stephen Amell) receives an offer from Nyssa (guest star Katrina Law) that is hard to refuse. Meanwhile, Thea (Willa Holland) continues to battle the blood lust, Malcolm (John Barrowman) steps in to help his daughter, and Laurel (Katie Cassidy) has a heart to heart talk with Nyssa. Gordon Verheul directed the episode written by Ben Sokolowski & Keto Shimizu. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related