He is married and has two daughters, Megan, an actress, who in 2020 joined the leading cast in the Netflix/BBC popular series Call the Midwife in the recurring role of Nurse Nancy Corrigan, and Kitty, a psychology graduate.
Initially he focused on the classical music sector, working at two leading concert venues in London, the Wigmore Hall and the Southbank Centre.
In 1992 he made his first move into theatre following his appointment as Administrative Director of West Yorkshire Playhouse in Leeds, alongside Jude Kelly where he produced a number of plays including the touring production of Five Guys Named Moe for Cameron Mackintosh Limited.
During this period he produced numerous productions for tour both in the UK and internationally, taking the work of the National Theatre to five continents.
[3] As well as his theatre producing work, Cusack offers representation to a number of Irish artists including the director Annie Ryan, the composer Mel Mercier and the British playwright Matt Wilkinson.