Carl Martin Gunnar Wallström Milkéwitz (born 7 July 1983) is a Swedish actor. He is most well-known internationally for his 2015 American debut role as Tyrell Wellick in the USA Network cyber-thriller Mr. Robot.
When the Sandman, aka Dream, the cosmic being who controls all dreams, is captured and held prisoner for more than a century, he must journey across different worlds and timelines to fix the chaos his absence has caused.