Casey’s original band was called The Nobodies which was formed in February 1980, with Matthew Stirling (Matthew de la Hunty, later of Tall Tales and True) on guitar and Steve Eskine on drums (this line-up of the band released a cassette of their recordings).[1] In early 1981 he left The Nobodies and played in a reggae band, A2Z.

Marty joined The Triffids in September 1982 and

joined Nick Cave and the Bad Seeds in April 1990.

When he arrive back home from touring with the Bad Seeds, he is guitarist with the ‘Big Boss Man’.