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Downton Abbey's Siobhan Finneran Not Returning for Season 4

After Sybil's and Matthew's untimely exits, we don't know if our hearts can take any more goodbyes. Unfortunately, it's not up to us. In a recent interview with the U.K.'s The Mirror, Downton Abbey star Siobhan Finneran revealed that she will not return for Season 4.

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Sadie Gennis

After Sybil's and Matthew's untimely exits, we don't know if our hearts can take any more goodbyes. Unfortunately, it's not up to us. In a recent interview with the U.K.'s The Mirror, Downton Abbey star Siobhan Finneran revealed that she will not return for Season 4.

Photos: Remember Sybil, Matthew and more of TV's most heartbreaking deaths

Finneran, who plays Lady Cora's scheming maid O'Brien, said, "I'm not doing any more. O'Brien is a thoroughly despicable human being — that was great to play."A Downton spokeswoman confirmed Finneran's exit to The Mirror, but added that it's possible that she might return one day.Will you miss O'Brien?