Fin began his acting career at the age of 8 when he went to his very first audition, and was selected by Lone Scherfig to play the role of Jude in The Kindness of Strangers. Fin was very grateful to Lone for that opportunity and for sparking a love of acting in him. Since that time, Fin has been cast as a lead and a supporting actor in a series of feature films. Fin's latest lead role is in the movie Blood, directed by Brad Anderson, and starring Michelle Monaghan. Prior to this, he played the role of Robin Wright's son in her feature film directorial debut, Land. He was also a lead in the horror film, The Banana Splits, which filmed in Capetown and in Dreamkatcher, which filmed in upper New York State, where he acted alongside Henry Thomas, Lin Shaye and Radha Mitchell.

Fin is a US and Canadian citizen and is currently based in Ontario.