Reidar Kaas (July 27, 1881 – May 18, 1952) was a Norwegian opera singer and actor.
[4] He took singing lessons with Raimund von zur-Mühlen in London and the tenor Ernesto Colli (1866–1928) in Milan.
[1] Kaas performed at La Scala in Milan, the Carlo Felice Theater in Genoa, and opera houses in Poznań, Hamburg, London, and Oslo.
He made his debut in the silent film Paria in 1916 as Doctor Berner.
In 1906, he married Eli Tandberg (born March 12, 1885), the daughter of the landowner Gudbrand Tandberg and Caroline Kristine Cortsen.