Alexander Skarsgard stripped to just a pair of snow boots and sunglasses after reaching the South Pole in Antarctica for the charity Walking With the Wounded Challenge.
The 37-year-old actor's team guide Inge Solheim shared a snapshot of him sitting naked on an outdoor toilet while reading a book, Us magazine reported.
Noting the minus 30 degree Celsius temperature, Solheim captioned the picture as "What are you reading, Alex? The script for season 7 of True Blood".