Marco Ilsø (born 29 September 1994) is a Danish actor. His first acting role was as a 14-year-old, playing the lead in 24 episodes of Mikkel og guldkortet. Since season 4, he has played Hvitserk in Vikings.
A wealthy New York City investment banking executive, Patrick Bateman, hides his alternate psychopathic ego from his co-workers and friends as he delves deeper into his violent, hedonistic fantasies.