Main •
Guy Pearce as Jack Irish, a criminal defence lawyer turned debt collector and troubleshooter. Jack is still troubled over the murder of his wife by a deranged ex-client. He also works as an apprentice cabinet maker. •
Marta Dusseldorp as Linda Hillier, a determined reporter. She starts an on-off romantic relationship with Jack, becoming embroiled in many of Jack's investigations. •
Aaron Pedersen as Cam Delray, Harry Strang's right-hand man and one of Jack's closest friends. •
Roy Billing as Harry Strang, a racing aficionado who often enlists the aid of Jack and Cam. •
Shane Jacobson as Barry Tregear, a cop who reluctantly helps with Jack's investigations. •
Damien Richardson as Drew Greer, Jack's former law partner who still occasionally assists him.
Supporting •
Damien Garvey as Stan (bar owner) •
Terry Norris as Eric Tanner •
John Flaus as Wilbur •
Ronald Falk as Norm •
Kate Atkinson as Simone •
Bob Franklin as Brendan O'Grady •
Deborah Mailman as Cynthia •
Vadim Glowna/David Ritchie as Charlie Taub •
Jacek Koman as Orton • Ivy Mak as Cherry Blossom •
Neil Melville as Ricky Kirsch •
Emma Booth as Isabel Irish •
Steve Mouzakis as Ryan Neubecker •
Alex Menglet as The Banker
Bad Debts (2012) •
Colin Friels as Garth Bruce •
Nicholas Bell as Martin Scullin •
Steve Bisley as Kevin Pixley •
Tottie Goldsmith as Jackie Pixley •
Colin Hay as Tony Baker •
Fletcher Humphrys as Wayne Milovich •
Alicia Gardiner as Sue McKillop • Simon Russell as Danny McKillop •
Marshall Napier as Father Gorman •
Sarah Roberts as Lorna •
Heather Mitchell as Mrs Vane
Black Tide (2012) •
Don Hany as Dave •
Diana Glenn as Lyall Cronin •
Martin Sacks as Steve Levesque •
Alexandra Schepisi as Meryl Canetti •
Lachy Hulme as Dean Canetti • Ronald Jacobson as Des Connors • Nicholas Coghlan as Gary Connors •
Rhys Muldoon as Rod Pringle •
Damian de Montemas as Transquik Security Guard •
Daniela Farinacci as Glenda Painter •
Eddie Baroo as Tow Truck Driver
Dead Point (2014) •
Barry Humphries as Justice Loder •
Madeleine Madden as Marie •
Kat Stewart as Ros •
Vince Colosimo as Mike Cundall •
John Jarratt as Senior Sgt Laurie Olsen •
Kate Beahan as Susan Ayliss •
Ben Gerrard as Xavier •
Sarah Roberts as Lorna •
Tina Bursill as Pat
Series 1: Blind Faith (2016) •
Claudia Karvan as Sarah Longmore •
Roz Hammond as Sue Shields •
John Bach as Senator Michael Longmore •
Marcus Graham as Rob Shand •
Brooke Satchwell as Tina Longmore •
Peta Brady as Janine Ballich •
Richard Cawthorne as Fraser Boyd •
Robert Morgan as Stedman •
Sacha Horler as Alli Aquaro •
Alvin Anson as Adonis •
Jonicka Movido as Fatma •
Kim Gyngell as Warren Tissot •
Osamah Sami as Hadji Adhib
Series 2: Last Rite (2018) •
Tiarnie Coupland as Gus •
Danielle Cormack as Rory Finch •
Helmut Bakaitis as Thornton Finch • David Whiteley as Phillip Quinn • Rubi Balasingam as Lakshmi • George Zhao as Eddie Chin •
Natalia Novikova as Jaeger • Don Bridges as Dougie Smalls •
Tony Rickards as Razor Ray
Series 3: Hell Bent (2021) •
Gary Sweet as Detective Phil Maitland •
Alison Whyte as Nina Persky • Matt Testro as Troy •
Robert Rabiah as Detective Mick Khoury •
Genevieve Picot as Detective Fran Underwood •
Ellen Grimshaw as Casey • Nicole Nabout as Evie Mansour •
Marta Kaczmarek as Anja •
Damian Walshe-Howling as Daryl Riley ==Telemovies (2012–2014)==