David Tennant and his wife Georgia have welcomed their fifth child together.

Georgia Tennant, née Moffett, announced the happy news on her Instagram page.

Referencing her husband's new Amazon Prime TV series Good Omens, she posted a photo collage of Tennant holding their newborn in a car-seat along with his co-star Michael Sheen's picture when his daughter was born last month.

She joked: ''An angel, a demon and a couple of babies. What could possibly go wrong?''

In the fantasy mini-series Good Omens, based on Terry Pratchett and Neil Gaiman's bestselling novel, Tennant plays the fast-living demon Crowley while Sheen plays the fussy angel Aziraphale.

The Scottish actor and English actress married in 2011 and already have 17-year-old Ty, eight-year-old Olive, six-year-old Wilfred and four-year-old Doris.

Former Doctor Who star Tennant announced their pregnancy news on The Late Late Show with James Corden in May.

He said: ''Five is a lot. What's really weird about it is we're now getting lectures on birth control from our 17-year-old son. And that's definitely meant to be the other way around.

''He's like 'Come on, do I need to teach you the basics?' It's mental. It's a lot.''

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