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.
A soldier introduces himself to the Peterson family, claiming to be a friend of their son who died in action. After the young man is welcomed into their home, a series of accidental deaths seem to be connected to his presence.