| Actor | Role | Episode |
|---|
| Abigail | Mrs Quinn | Episode 18: "The Chen Legacy" |
| Alan David Lee | Jimmy Steele | Episode 36: "Return of the Cat" |
| Alex Menglet | Yuri | Episode 26: "Farewell to a Comrade" |
| Alister Smart | Haskell | Episode 21: "A Wild Oat" |
| Alwyn Kurts | Teddy | Episode 42: "Life After Teddy" |
| Anna Maria Monticelli | Teresa Parrissa | Episode 3: "Code of Silence" |
| Anne Phelan | Ma Robinson | Episode 33: "Ghosts" |
| Antoinette Byron | Jasmine | Episode 12: "The Golden Run" |
| Arna-Maria Winchester | Cassie Summers | Episode 17: "Wild Man" |
| Arthur Dignam | Grayson | Episode 19: "Child of Fortune" |
| Bartholomew John | John Sutton | Episode 14: "Slow Attack" |
| Ben Mendelsohn | Spud | Episode 14: "Slow Attack" |
| Betty Bobbitt | Daisy | Episode 32: "Until Death" |
| Billie Hammerberg | Alice | Episode 19: "Child of Fortune" |
| Bob Baines | | Episode 4: "Easy Street" |
| Brian James | Bert | Episode 22: "Mates" |
| Brian Moll | Charlie Everett | Episode 14: "Slow Attack" |
| Briony Behets | Rhonda Watson | Episode 7: "The Second Mr. Swift" |
| Bruce Barry | Sloan | Episode 6: "The Long Secret" |
| Bruce Spence | Professor | Episode 36: "Return of the Cat" |
| Bruno Lawrence | Arthur Poole | Episode 32: "Until Death" |
| Bryan Marshall | Calvin | Episode 18: "The Chen Legacy" |
| Carmen Duncan | Lorraine | Episode 9: "Same Time Friday" |
| Chris Haywood | Jeff Carter | Episode 6: "The Long Secret" |
| Christine Amor | Robyn Symons | Episode 34: "The Haley Inheritance" |
| Christopher Milne | Sanders | 1 episode |
| Cliff Ellen | Priester / Technician | 2 episodes |
| Daniel Abineri | Dillon | Episode 41: "Mad Mountain Mumma" |
| David Argue | Bazza | Episode 27: "In the Cause of Justice" |
| Deborra-Lee Furness | Liz Jenkins | Episode 6: "The Long Secret" |
| Dennis Miller | Finch | Episode 33: "Ghosts" |
| Dina Mann | Mandy | Episode 11: "The Set-Up" |
| Dina Panozzo | Maria | Episode 3: "Code of Silence" |
| Dinah Shearing | Minster | Episode 23: "Big Bad World" |
| Elizabeth Alexander | Edith | Episode 8: "The Wurzburg Link" |
| Francis Bell | Burnett | Episode 8: "The Wurzburg Link" |
| Frank Gallacher | Slater | Episode 24: "Earlybird" |
| Frank Wilson | Dorahee | Episode 27: "In the Cause of Justice" |
| Frankie J. Holden | Tony | 3 episodes |
| Genevieve Mooy | Melissa | Episode 42: "Life After Teddy" |
| Gennie Nevinson | Kate | Episode 32: "Until Death" |
| Geoff Cartwright | Dusan Narros | Episode 29: "Killer" |
| Gerard Kennedy | Harry Tait | Episode 1: "Trojan Horses" |
| Gerard Maguire | Hansen | Episode 8: "The Wurzburg Link" |
| Gil Tucker | Hammond | Episode 41: "Mad Mountain Mumma" |
| Glenn Robbins | | Episode 21: "A Wild Oat" |
| Grigor Taylor | Bob Daley | Episode 23: "Big Bad World" |
| Gus Mercurio | Haliwell | Episode 38: "Mombasa" |
| Ian McFadyen | Evans | Episode 5: "Counterfeit Lady" |
| Ilona Rodgers | Helen Anderson | Episode 32: "Until Death" |
| Ivar Kants | Scalese / Denning | 2 episodes |
| Jackie Woodburne | Sharon | Episode 22: "Mates" |
| James Smillie | Donaghue | Episode 9: "Same Time Friday" |
| Jane Clifton | Karen | Episode 31: "Brothers" |
| Jane Menelaus | Penny Young | "Episode 39: "The Haunting |
| Jeff Truman | Bugs | Episode 24: "Earlybird" |
| Jennifer Hagan | Rachel | Episode 21: "A Wild Oat" |
| Jill Forster | Mrs. Watson | Episode 25: "The Bribe" |
| John Ewart | Mungo Lennox | Episode 38: "Mombassa" |
| John Frawley | Whiteman | Episode 34: "The Haley Inheritance" |
| John Gaden | Angel | Episode 25: "The Bribe" |
| John Gregg | Golodkin | Episode 26: "Farewell to a Comrade" |
| John Jarratt | Michael Cohen | Episode 39: "The Haunting" |
| John McTernan | Ted | Episode 22: "Mates" |
| John Orcsik | Ted Rafferty | Episode 15: "Country Girl" |
| John Wood | Barron / Cawley | 2 episodes |
| Jon Blake | Pig | Episode 13: "Jacko" |
| Jon Finlayson | Devonport | Episode 11: "The Set-Up" |
| Jonathan Sweet | Del | Episode 24: "Earlybird" |
| Judith McGrath | June Holgate | Episode 26: "Farewell to a Comrade" |
| Julia Blake | Mrs Stevens | Episode 15: "Country Girl" |
| Julianna Allan | | Episode 4: "Easy Street" |
| Julie Nihill | Tina | Episode 43: "Gone for the Doctor" |
| Kaarin Fairfax | Katie | Episode 17: "Wild Man" |
| Ken Wayne | Ted Baker | Episode 7: "The Second Mr. Swift" |
| Lesley Baker | Chambermaid | Episode 5: "Counterfeit Lady" |
| Leslie Dayman | Fitzgerald | Episode 28: "Hot Streets" |
| Liddy Holloway | Mrs. Tait | Episode 1: "Trojan Horses" |
| Lisa Aldenhoven | Gina Grazini | Episode 8: "The Wurzburg Link" |
| Lorna Lesley | Sharon | Episode 9: "Same Time Friday" |
| Louise Siversen | Laura | Episode 4: "Easy Street" |
| Lucky Grills | Earwig | Episode 36: "Return of the Cat" |
| Maggie Millar | Joyce | Episode 30: "The Patchwork" |
| Maria Mercedes | Maria Baxter | Episode 28: "Hot Streets" |
| Marina Finlay | Suzie | Episode 35: "Suzie's War" |
| Mark Mitchell | | 1 episode |
| Martin Vaughan | Ben Alexander | Episode 36: "Return of the Cat" |
| Maureen Edwards | Mrs Sharp | Episode 4: "Easy Street" |
| Max Phipps | Arthur Lambert | 2 episodes |
| Mercia Deane-Johns | Molly | Episode 35: "Suzie's War" |
| Michael Duffield | Fulcher | Episode 41: "Mad Mountain Momma" |
| Michael Long | Scarface | Episode 34: "Suzie's War" |
| Michele Fawdon | Maggie | Episode 36: "Return of the Cat" |
| Monica Maughan | Mrs Trane | Episode 8: "The Würzburg Link" |
| Myra De Groot | Grace Kiddell | Episode 7: "The Second Mr. Swift" |
| Nicholas Eadie | Driscoll | Episode 18: "The Chen Legacy" |
| Nick Carrafa | Camilleri | Episode 3: "Code of Silence" |
| Nick Tate | Len Harris | Episode 7: "In the Cause of Justice" |
| Nico Lathouris | Tommo | Episode 6: "The Long Secret" |
| Nigel Bradshaw | Gant | Episode 1: "Trojan Horses" |
| Nina Landis | Lisa | Episode 10: "Duel" |
| Norman Coburn | Griffin | Episode 5: "Counterfeit Lady" |
| Norman Kaye | Lenny / Skittles | 2 episodes |
| Pat Bishop | Barbara Prowse | Episode 16: "War" |
| Paul Karo | Shafer / Skinny | 2 episodes |
| Peter Cummins | Dixie Hanrahan | 1 episode |
| Peter Curtin | Thomas | Episode 13: "Jacko" |
| Peter Fisher | French | Episode 31: "Brothers" |
| Peter Moon | Eddie | Episode 11: "The Set-Up" |
| Peter O'Brien | Billy | Episode 16: "War" |
| Peter Sumner | Nick Hardy | Episode 1: "Trojan Horses" |
| Peter Whitford | Stan | Episode 28: "Hot Streets" |
| Philip Quast | Jaeger | Episode 8: "The Wurzburg Link" |
| Ralph Cotterill | Ambrose | Episode 20: "Business as Usual" |
| Rebecca Gilling | Helen | Episode 11: "The Set-Up" |
| Red Symons | Warton | Episode 9: "Same Time Friday" |
| Reg Gorman | Ryan | Episode 1: "Trojan Horses" |
| Rhys McConnochie | Mathieson | Episode 21: "A Wild Oat" |
| Richard Moir | Errol | Episode 43: "Gone for the Doctor" |
| Ricky May | Mandrake | Episode 27: "In the Cause of Justice" |
| Robert Coleby | Scott | Episode 22: "Mates" |
| Robert Grubb | Sims | Episode 19: "Child of Fortune" |
| Robin Ramsay | Massini | Episode 30: "The Patchwork" |
| Roger Oakley | Conlon | Episode 23: "Big Bad World" |
| Roger Ward | Bill Foster / Peaches | 2 episodes |
| Ronne Arnold | Kwan | Episode 23: "Big Bad World" |
| Roslyn Gentle | Judith Deans | Episode 14: Slow Attack" |
| Sally McKenzie | Hannah | Episode 26: "Farewell to a Comrade" |
| Scott Burgess | Michael | Episode 31: "Brothers" |
| Sean Scully | Leo Teller / Kevin O'Neill | 2 episodes |
| Serge Lazareff | Kellet | Episode 31: "Brothers" |
| Shane Briant | Ian Cummings | Episode 14: "Slow Attack" |
| Simon Chilvers | Maguire | Episode 12: "The Golden Run" |
| Steve Bastoni | Serge | Episode 17: "Wild Man" |
| Steve Bisley | T-Bar | Episode 24: "Earlybird" |
| Terry Gill | Lambert | Episode 25: "The Bribe" |
| Terry McDermott | Inspector | Episode 13: "Jacko" |
| Tim Robertson | Roberts | Episode 2: "The Expert" |
| Tina Bursill | Meredith | Episode 25: "The Bribe" |
| Tom Oliver | Tobin | Episode 3: "Code of Silence" |
| Tommy Dysart | Scottie / Bingo Caller | 2 episodes |
| Tony Bonner | Carver | Episode 35: "Suzie's War" |
| Tottie Goldsmith | Fiona | Episode 9: "Same Time Friday" |
| Trevor Kent | Doggy Barker | Episode 4: "Easy Street" |
| Vic Gordon | Dr. John Perry | Episode 15: "Country Girl" |
| Vince Martin | Kelly | Episode 40: "Rotten Apple" |
| Vincent Ball | Morgan / Senior Official | 2 episodes |
| Vincent Gil | The Blindman | Episode 16: "War" |
| Willie Fennell | Sol Greenberg | Episode 32: "Until Death" |
| Wyn Roberts | Superintendent Kerslake | 3 episodes |
