Secret Men's Business explores the relationships and issues of 4 school-friends reunited after the death of a beloved school teacher. During a weekend of sun, surf, girls, wives and late night reminiscing, the friends begin to deal with certain truths which have been ignored for some time. As relationships and issues are explored, the friends face their own personal challenges amidst a contempt bourne out of familiarity.
| Actor | Role |
|---|---|
 Ben MendelsohnDoug Petersen | Doug Petersen |
 Marcus GrahamMichael Schofield | Michael Schofield |
 Simon BakerAndy Greville | Andy Greville |
 Jeremy SimsWarwick Jones | Warwick Jones |
 Jeremy CallaghanIan Mooney | Ian Mooney |
 Maya StangeEmma | Emma |
| TTara JakszewiczPhoebe | Phoebe |
| KKate AgnewAlison | Alison |
 Joel EdgertonBaz | Baz |
| AAnn BurbrookBec | Bec |
| BBrian HarrisonThe Reverend | The Reverend |
 Rhondda FindletonMrs. Healey | Mrs. Healey |
| GGail WatsonJude | Jude |
| MMiranda ChanceTracey | Tracey |
 Tory MussettKim | Kim |
| PPeter RasmussenLawyer | Lawyer |
| VVirginia HokhamBeach Girl | Beach Girl |
| DDanny WoodrowPeter Heasley | Peter Heasley |
| RRebecca McLeodBeach Girl | Beach Girl |
| KKarinna GreksaIan’s Twin Daughter | Ian’s Twin Daughter |
| KKabila GreksaIan’s Twin Daughter | Ian’s Twin Daughter |
| ZZigmon ‘Ziggy’ BramichDylan Peterson | Dylan Peterson |
| MMelissa MifsudIan’s Eldest Daughter | Ian’s Eldest Daughter |
| MMarc PillemerRunning Man | Running Man |
| JJason LeeuwLocal #1 | Local #1 |
| RRowan ThackerLocal #2 | Local #2 |