At the same time, he appeared in various short films, as well as playing the roles of Olaf in Henrik Ibsen's The Pillars of Society and Anton in Det Lykkelige Valg at the National Theatre in 1992 and 1993, respectively.
From 2012 to 2014, Kaalstad had a recurring role on the Netflix show Lilyhammer about a former New York gangster trying to start a new life in Lillehammer, Norway.
In 2019, Kaalstad received the Hedda Award in the category Best Male Actor for his role in the play Uten navn - Å miste sine nærmeste by Mattis Herman Nyquist and Fredrik Høyer.
[4] Kaalstad performs as an electronic musician under the stage name Sideshow Jøgge, often with collaborator Olav Brekke Mathisen.
They have made a number of music videos for other artists such as Snuten and King Midas, as well as commercials, including for Quart Festival 2005.