Lenny Henry, Kit Harington and Hugh Skinner are all lending their voices to BBC One’s Christmas animation Zog.

They will be joined by Tracey Ullman in the adaptation of Julia Donaldson and Axel Scheffler’s story about a hapless young dragon called Zog and his unlikely friendship with a young girl.

Lenny Henry will narrate the story, while Harrington plays the Knight Sir Gadabout.

Tracey Ullman is Madame Dragon while W1A star Skinner is Zog himself.

Sir Lenny Henry said, “It’s wonderful to have voiced the narrator in Zog for this Christmas. The story has a lovely lyricism to it and it’s been really good fun seeing the beautiful animation come together. There’s a cast of brilliant actors and the story is silly, and outrageous, and surreal, and I like all of those things.”

Zog was first published in 2010 and has sold more than 1.5 million copies as well as winning the Galaxy National Children’s Book of the Year Award.