Mortensen, Viggo, 1958- (Autor Personal)

Psycho, 1999: credits (starring Viggo Mortensen)

Internet movie database, Aug. 10, 1999 (Viggo Mortensen, actor; b. 1958, New York, NY)

Wikipedia, May 2, 2012 (Viggo Morensen; Viggo Peter Mortensen Jr.; b. Oct. 20, 1958; American actor, poet, musician, photographer and painter; founded Perceval Press)

IMDb, August 7, 2019: (Viggo Mortensen, actor, producer ; b. October 20, 1958 in Manhattan, New York City, New York, USA)

The lord of the rings, 2003: label (Viggo Mortensen)