Game of Thrones stars Kristian Nairn, Hafþór Júlíus Björnsson and Hannah Waddingham co-star in SodaStream's Say Goodbye campaign, promoting the brand's environmentally friendly sparkling water machine.
Nairn, who plays the role of Hodor in the HBO series, said 'As a fan of SodaStream and an advocate for the environment myself, I always welcome an opportunity to help SodaStream spread their environmental message about single-use plastic'.