WHITE House Farm viewers went wild as they spotted an epic Game of Thrones family reunion on last night's show.
The ITV drama saw the arrival of Alfie Allen as Brett Collins during the third episode, and at one point his character was introduced to Ann Eaton, played by Gemma Whelan.
While the characters were meeting for the first time, in real life Alfie and Gemma know each other extremely well, having played siblings Theon and Yara Greyjoy in the hit HBO series.
Fans of the fantasy series, which came to an end last year, were delighted to see the pair back on screen together.
Taking to Twitter, one viewer wrote: "I am loving the mini Game of Thrones reunion with the Greyjoys in White House Farm".
Another added: "Seeing the Greyjoy siblings together again is slightly distracting."
A third joked: "What on Earth is happening in #WhiteHouseFarm? Now Theon Greyjoy has turned up to join sister Yara and supersleuth Robert Baratheon.
"Keeping an eye out for Tyrion Lannister lurking in an outbuilding."
A fellow fan shared: "Great to see the Greyjoy siblings together again #WhiteHouseFarm @WhelanGemma Alfie Allen."
They aren't the only Game of Thrones stars to appear in the ITV series, which follows the real life mass murder of a family in a farmhouse in Essex, 1985.
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Mark Addy, who played King Robert Baratheon, appears as DS Stan Jones, while Mark Stanley - who played Grenn in Game of Thrones - plays Colin Caffell.
The White House Farm cast also includes Stephen Graham, Freddie Fox, Amanda Burton and Prince Harry's ex-girlfriend, Cressida Bonas.
White House Farm continues on Wednesday, January 29 at 9pm.