Lisa "Duffy" Duffin
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Lisa "Duffy" Duffin was one of the original characters in the long-running BBC drama Casualty. She was played by Cathy Shipton. She is the third longest-serving character in the show's history.
Duffy left the show in season eight following her unexpected pregnancy with her husband Andrew. She returned four years later for Charlie Fairhead's and Barbara 'Baz' Wilder's wedding along with Megan Roach and Mark "Ash" Ashford. She confided in Charlie that her marriage to Andrew was crumbling. However when she returned in season 14 she and Andrew were still together and remained together until his death in Season 17. She later became engaged to Security Guard and con artist Ryan who disappeared with her life savings. He returned, reimbursed the money in full, declared his love for Duffy and the two disappeared to forge a new life in New Zealand. Their relationship evidently did not last as Duffy reappeared at the start of season 21 without him.