Education
Christiansen graduated from the Norwegian Acting Academy in 2000.
Christiansen graduated from the Norwegian Acting Academy in 2000.
He started his professional career at the Trøndelag Teater in Trondheim, Norway. Later he joined the Det Norske Teatret in Oslo. He has also starred in the Swedish 2008 picture Arn – The Kingdom at Road"s End.
He then became the first actor to collect an Amanda, a Gullruten and a Hedda award.
He later voiced Hans in the Norwegian dub of Disney"s "Frozen". Christiansen played Herman Watzinger in the 2012 adaptation of Thor Heyerdahl"s Kon-Tiki.
He earned his breakthrough in 2003 when he received the Amanda award for his performance in the Norwegian picture Buddy. He also won the television award Gullruten in 2007 for his portrait of Henrik Ibsen in the television-series An Immortal Manitoba (En udødelig mann) on Norsk Rikskringkasting. In 2008 he won Norway"s most prestigious actor"s award, the Heddaprisen, for his interpretation of Hamlet. He received the Shooting Stars Award, the annual acting award for up-and-coming actors by European Film Promotion, at the Berlin International Film Festival 2010.