Alfie Allen and girlfriend Allie Teilz have welcomed a baby girl (Photo by Jamie McCarthy/Getty Images)

Game Of Thrones actor Alfie Allen has become a father for the first time.

The 32-year-old surprised fans with the news that his girlfriend DJ Allie Teilz, 23, had given birth to a baby girl on Monday.

Sharing a picture of the newborn gripping his finger on Instagram, Lily Allens younger brother dropped his baby bombshell to 55k elated fans.

He wrote: With full hearts and overwhelming joy @allieteilz and I introduce you to the newest member of our family. She is perfect.

Neither Allie nor Alfie confirmed the pregnancy and were last pictured together at New York Fashion Week in February.

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A representative for Alfie Allen has been contacted by Metro.co.uk for further information.

Former GoT co-star Sophie Turner was among the first to congratulate him, writing: So much love for you both and the new bubba.

Gwendoline Christie echoed her comment, saying: So much love to you all, while Kerry Ingram wrote: Congrats to you both.

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Alfies sister Lily, who is mum to daughters Marnie and Ethel, shared a red love heart and a party popper beside the post.

Alfie – who played Theon Greyjoy in Game of Thrones until 2017 – and American DJ Allie have enjoyed a low-profile romance since June 2017.

In 2013, Allie dated actor Joaquin Phoenix, 43 (who was 20 years her senior) after they met during her DJ set at a Hollywood club.

Meanwhile Alfies most famous relationship was with Jaime Winstone, who now has a son with DJ boyfriend James Suckling.

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