"Once Upon a Time" already boasts a menagerie of fabulous accents, but the ABC drama has turned to "Downton Abbey" for its latest dose of British charm.

Lesley Nicol, who plays the indomitable cook Mrs. Patmore on the hit UK series, will guest star in Episode 15 of Season 2. According to showrunners Adam Horowitz and Eddy Kitsis, Nicol's character "has a connection to Snow White and her family."

Kitsis added, "We're all big 'Downton Abbey' fans -- this morning on the way in, I got an email from Josh Dallas going 'No way!' He was excited." Dallas first broke the news via Twitter on Wednesday morning.

Also visiting the show this season is "The Walking Dead's" Sonequa Martin-Green, who will play a "mysterious character" known as Tamara.

"Once Upon a Time" returns this Sunday, January 6 at 8 p.m. EST on ABC. "Downton Abbey" Season 3 premieres Sunday, January 6 at 9 p.m. EST on PBS.

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  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • Heart of the Truest Believer

    Episode 301

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • And Straight On 'Til Morning

    Season 2 finale.

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

  • Broken

    "In the premiere episode, "Broken," reality and myth begin to merge as the fairytale characters awaken from Evil Queen Regina's broken curse and remember who they were. But to their dismay, they aren't transported back to fairytale land. To make matters worse, Rumplestiltskin - aka Mr. Gold - in an effort to gain the upper hand in his power struggle with Regina, has introduced magic into the town. In fairytales magic has its place, but in our world it can have unfathomable consequences. Meanwhile, back in the fairytale land, Prince Phillip awakens his sleeping beauty, Aurora (Sarah Bolger, "The Tudors"), but discovers that he and his traveling companion, Mulan (Jamie Chung, "Sucker Punch," "The Hangover Part II"), will soon have to face a deadly foe, on the Season Premiere of "Once Upon a Time," SUNDAY, SEPTEMBER 30 (8:00-9:00 p.m., ET) on the ABC Television Network."

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