Television News 'Grey's Anatomy' casting: Abigail Spencer replaces Bridget Regan as Owen's sister 08/04/2017 ABC has cast Abigail Spencer as Owen's sister Megan Hunt on "Grey's Anatomy," a role previously held by Bridget Regan. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Kevin McKidd Abigail Spencer Ellen Pompeo Bridget Regan Eric Dane Martin Henderson Grey's Anatomy The Last Ship Timeless
