It's been announced today that David Tennant will be joining the cast of ITV children's show, Thunderbirds Are Go, as Tycho Reeves, a billionaire inventor much admired by Brains, who has some unexpected teething problems on the inaugural voyage of his superspeed Hypercar.

Also joining the cast are Emilia Clarke of Game Of Thrones as Doyle, a resilient and courageous oil rig worker who stands up for what is right and allies herself with International Rescue, Adam Hills (Ther Last Leg) as Buddy Pendergast, Alan Ford (Snatch, Lock, Stock and Two Smoking Barrels) as Light Fingered Fred, Asa Butterfield (Hugo, Miss Peregrine’s Home For Peculiar Children) as Space Controller Conrad, Kathryn Drysdale (Two Pints of Lager and a Packet of Crisps) as Kate, Mark Gatiss (Sherlock, Taboo) as Professor Quentin Questa, Ruby Wax (Ruby, The Waiting Game) as Hayley Edmonds and Togo Igawa (Memoirs of a Geisha, The Last Samurai) as Toshi Murakami.

Thunderbirds Are Go is a remake of the 1960s television series Thunderbirds created by Gerry and Sylvia Anderson that follows the exploits of International Rescue, a secret life-saving organisation equipped with technologically advanced rescue craft for sea, land, air and space rescue. Central to the organisation's work is a fleet of five vehicles named the Thunderbirds, each piloted by one of the Tracy brothers.

David's mother in law, the actress Sandra Dickinson, is already a series regular and voices the character of Grandma Tracy.

Thunderbirds Are Go returns to ITV and CITV in September