We meet Professor Anthony Ivo in this clip from Arrow. It is courtesy of the Arrow episode "League of Assassins."
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Arrow Season 2 is moving right along. Check out the official promo here for "League of Assassins."
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Arrow Season 2 Episode 5 Quotes

Oliver: You know, not a day goes by when your family doesn't miss you.
Sara: Yeah? How do you know?
Oliver: Because I missed you.

Sara: Laurel's gonna kill me. She's really gonna kill me.
Oliver: She'll never know.