He won Denmark's amateur lightweight boxing championship when he was 15 and went on to become welterweight champion of Central Europe and Scandinavia.

He went on to sing in night clubs and revues while touring in South Africa and Sweden, and he performed in London and provincial music halls in England in 1921.

[7] After she carved "GG loves CB" on Brisson's dressing-room door, he mentioned her to Mauritz Stiller, who then sought her for his next film.

[7] Brisson attracted attention when he appeared as Prince Danilo in the 1923 London production of The Merry Widow at Daly's.

He starred in the "mystery show with music" radio program A Voice in the Night on the Mutual Broadcasting System that debuted on May 3, 1946.