Two years on since the explosive events of the second season, outsider turned kingmaker, Alex Irving, is now completely at home in the nation's capital. She's at the centre of power, holding the Government on a short leash, but it's taking a toll.

• Deborah Mailman
• Rachel Griffiths
• Rob Collins
• Wayne Blair
• Anthony Hayes
• Wesley Patten
• Huw Higginson
• Steph Tisdell