Acting is the most brotherly and sisterly profession in the world.

Cusack was educated in Newbridge College Newbridge County Kildare and University College Dublin. His sons Paul Cusack and Pádraig Cusack (born 1962) work as a producer with Radio Telefís Éireann and as an associate producer at the National Theatre London respectively. Selected filmography


Film
Mick Brian's son in Knocknagow (1918)
Servants All (1938)
Inspector Hornleigh Goes to It (1941)
Once a Crook (1941)
Pat in Odd Man Out (1947) with James Mason
James Carter in The Blue Lagoon (1949)
Cpl.