[1] His most famous roles were perhaps in Kulkurin valssi ("The Vagabond's Waltz"), and Vaimoke ("Surrogate Wife").

He appeared with actress/singer Birgit Kronström in the 1941 romantic comedy "Onnellinen ministeri" ("The Lucky Cabinet Minister"), which included the famous song "Katupoikien laulu", remade by other Finnish pop singers including Katri Helena.

The dark-haired lad from Sörnäinen who had a good voice got attention, and in 1931 he was invited to audition for film studios.

He was hired by the Finnish National Theatre, but until 1938 he got only small roles, because his popularity as a film star harmed his credibility on the stage.

[3] Before the Second World War Palo recorded a number of songs from the musical films he acted in.