Keanu Reeves is a God, that's saying something, I've never watched any of the John Wick films. Viggo Mortensen has tremendous range although his last film with Cronenberg was pretentious and not very horrific. Nardo's best acting came in the film
The Aviator, he hasn't achieved that level of excellence since. They gave him an Oscar for The Revenant for suffering.
Al Pacino approved of Viggo's Sicilian accent. Viggo ate lots of pizza to look the part.