- Marzena Godecki
- Â Neri 78 episodes, 1994-1997
- David Hoflin
- Â Jason Bates 78 episodes, 1994-1997
- Jeffrey Walker
- Â Brett Bates 78 episodes, 1994-1997
- Alex Pinder
- Â Dr. Winston Seth 78 episodes, 1994-1997
- Nina Landis
- Â H.E.L.E.N. 78 episodes, 1994-1997
- Liz Burch
- Â Dr. Dianne Bates 52 episodes, 1996-1997
- Brooke Anderson
- Â Cassandra 'Cass' Clayborn 51 episodes, 1996-1997
- Nicholas Bell
- Â Dr. Hellegren 41 episodes, 1994-1997
- Tony Briggs
- Â Dave Hartley 37 episodes, 1996-1997
- Lauren Hewett
- Â Mera 30 episodes, 1995-1997
- Miki Oikawa
- Â First Officer 27 episodes, 1994-1996
- Kerry Armstrong
- Â Dr. Dianne Bates 26 episodes, 1994-1995
- Sudi de Winter
- Â Benny Malcovitch 26 episodes, 1996-1997
- Joel De Carteret
- Â Froggy 26 episodes, 1994-1995
- Cassandra Magrath
- Â Zoe 26 episodes, 1994-1995
- George Henare
- Â Malakat 26 episodes, 1997
- Tharini Mudaliar
- Â Shersheba 26 episodes, 1997
- Bruce Hughes
- Â Commander Wellington 26 episodes, 1996-1997
- Nadja Kostich
- Â Kellar 26 episodes, 1996-1997
- Jacalyn Prince
- Â Vanessa Lane 25 episodes, 1994-1995
- Joelene Crnogorac
- Â Lena Hellegren 25 episodes, 1996-1997
- Olivia Hiddlestone
- Â Sallyanne Taylor 25 episodes, 1996-1997
- Verity Colquhoun
- Â Morgan Clayborn 25 episodes, 1996-1997
- Jeremy Angerson
- Â Kal 24 episodes, 1996-1997
- Damien Bodie
- Â Louis Danton 23 episodes, 1997
- Mark Neal
- Â Agent Jake Shelby 23 episodes, 1997
- Brenda Monaghan
- Â Agent Elly Hauser / ... 22 episodes, 1997
- Paul Sonkkila
- Â Richter 21 episodes, 1997
- Martin Copping
- Â Orky 18 episodes, 1996-1997
- Gregory Ross
- Â Paul Bates 16 episodes, 1997
- Guy Mallaby
- Â Damien 13 episodes, 1994
- Andrea McEwan
- Â Lee 13 episodes, 1994
- Bryony Price
- Â Jodie 13 episodes, 1994
- Anthony Hayes
- Â Mick 13 episodes, 1995
- Kristy Barnes-Cullen
- Â Joanne 13 episodes, 1995
- William McInnes
- Â Commander Lucas 13 episodes, 1994
- Samuel Johnson
- Â Rocky 13 episodes, 1995
- Claudia Buttazzoni
- Â Kimberly 13 episodes, 1995
- Melvin J. Carroll
- Â Second Officer 13 episodes, 1994
- Terry Serio
- Â Captain Sam Phillips 13 episodes, 1995
- Pamela Rabe
- Â Commander Byrne 13 episodes, 1995
- Caitlin McDougall
- Â Lieutenant Borg 13 episodes, 1995
- Christopher Kirby
- Â Second Officer 13 episodes, 1995
- Mitch Deans
- Â UBRI Diver / ... 11 episodes, 1995-1997
- Michael Veitch
- Â First Officer Danton / ... 10 episodes, 1997
- Rhona Rees
- Â Ilona 10 episodes, 1997
- Barry Friedlander
- Â Garren / ... 10 episodes, 1997
- William Gluth
- Â Forsyth 10 episodes, 1995
- Cecille Johnson
- Â ORCA Cadet / ... 10 episodes, 1996-1997
- Marie-Louise Walker
- Â Shalamorn / ... 9 episodes, 1997
- Sonya Suares
- Â Liselle 9 episodes, 1995
- Ed McShortall
- Â UBRI Diver / ... 9 episodes, 1996
- Darius Mendoza
- Â ORCA Cadet 9 episodes, 1996-1997
- Susan Gorence
- Â Mrs. Clayborn 7 episodes, 1996-1997
- Peter West
- Â UBRI Diver / ... 7 episodes, 1996
- Jean-Pierre Mignon
- Â Dr. Malcovitch 6 episodes, 1996-1997
- Nelao Hishongwa
- Â ORCA Cadet 6 episodes, 1996-1997
- Doug Penty
- Â UBRI Aid / ... 5 episodes, 1996-1997
- Elliot Hayes
- Â Billy 5 episodes, 1994
- Anthony Hawkins
- Â Searcher #1 / ... 5 episodes, 1995-1997
- Heath Bergersen
- Â Jakamarra 5 episodes, 1997
- Harriette O'Kellow
- Â ORCA Bridge Officer / ... 4 episodes, 1996-1997
- Catherine Wilkin
- Â Madame President 3 episodes, 1997
- Ian Wilmoth
- Â UBRI Guard / ... 3 episodes, 1996-1997
- Desire Vincent
- Â Tribunal Member 3 episodes, 1996
- Kirk Alexander
- Â Searcher 3 episodes, 1997
- Shanyn Asmar
- Â Searcher 3 episodes, 1997
- Yvonne Virsik
- Â Kellar's Assistant / ... 3 episodes, 1996-1997
- Prudence Mazorodze
- Â ORCA Cadet 3 episodes, 1997
- Nicki Paull
- Â Searcher #2 3 episodes, 1995
- John Morris
- Â Commando / ... 3 episodes, 1996-1997
- Jackie Kelleher
- Â Female Elder 2 episodes, 1997
- Tenley Gillmore
- Â Dolores / ... 2 episodes, 1994-1997
- Belinda Davey
- Â Dr. Laviche 2 episodes, 1997
- David Watson
- Â Male Crew Member / ... 2 episodes, 1994-1996
- Fred Whitlock
- Â Johansson 2 episodes, 1994
- Carol Stahl
- Â Tribunal Member 2 episodes, 1996
- Kee Chan
- Â Mr. Lee 2 episodes, 1997
- Ashley Firman
- Â Senior UBRI Guard 2 episodes, 1994
- Ric Anderson
- Â Commando / ... 2 episodes, 1997
- Michelle Rupena
- Â ORCA Newsreader 2 episodes, 1997
- Bob Newman
- Â Dr. Gabriel 2 episodes, 1995
- Gordon Hunter
- Â Corroboree Group / ... 2 episodes, 1994-1995
- Christie Hayes
- Â Pretty kid 2 episodes, 1995-1997
- Jon English
- Â Doug 1 episode, 1996
- Molly McCaffrey
- Â Emma 1 episode, 1997
- Rodney McLennan
- Â Spotty Kid 1 episode, 1994
- Lisa Stahl
- Â Tribunal Member 1 episode, 1996
- Tom Hutchings
- Â Luke 1 episode, 1997
- Mary Ann Russell
- Â Pilot 1 episode, 1994
- George Vidalis
- Â Chieftain 1 episode, 1997
- Big Bad Ralph
- Â Horace 1 episode, 1997
- Charles 'Bud' Tingwell
- Â Mr. Carmody 1 episode, 1994
- Doris Younane
- Â Celia 1 episode, 1994
- Tim Robertson
- Â Blunt 1 episode, 1994
- Helen Jones
- Â Jan Slater 1 episode, 1994
- Peter McDonald
- Â Father 1 episode, 1994
- Jermaine Herbohn
- Â Sam 1 episode, 1994
- Carolyn Bock
- Â Kraya 1 episode, 1996
- Robyn Gibbes
- Â Camilla Sabato 1 episode, 1996
- Davin Taylor
- Â ORCA Surveyor's Assistant 1 episode, 1996
- Rodney Afif
- Â Bedouin 1 episode, 1997
- Zev Eleftheriou
- Â Captain 1 episode, 1997
- Michael Joshua
- Â Tour Guide 1 episode, 1997
- Victor Bizzotto
- Â Computer Technician 1 episode, 1997
- Neil Melville
- Â Lambert 1 episode, 1994
- Nick Carrafa
- Â Haig 1 episode, 1994
- Leilani Krans
- Â Young Neri 1 episode, 1994
- Emanuela Leoni
- Â Valerie 1 episode, 1994
- Steve Broomhall
- Â Search Officer 1 episode, 1994
- Lyndon Daly
- Â Kevin 1 episode, 1994
- Petra Yared
- Â Patti 1 episode, 1996
- Jonathon Brooks
- Â Moose 1 episode, 1996
- Qliong Truong
- Â Rang 1 episode, 1996
- Roger Boyce
- Â UBRI Scientist 1 episode, 1996
- Natalie Gauci
- Â ORCA Girl 1 episode, 1996
- Bill Scentrine
- Â ORCA Newsreader 1 episode, 1996
- Sally Bayes
- Â Larissa 1 episode, 1996
- Philip Reilley
- Â Camper 1 episode, 1997
- Graham Calbury
- Â UBRI Driver 1 episode, 1997
- Ramez Tabit
- Â Bedouin 1 episode, 1997
- Stephen Hall
- Â Medical Officer 1 episode, 1994
- Peter Webb
- Â Max 1 episode, 1994
- Rhys Hine
- Â Matt 1 episode, 1994
- Saskia Post
- Â Hypnotherapist 1 episode, 1996
- Colleen Hewett
- Â Faye 1 episode, 1996
- Defah Dattner
- Â Mouse 1 episode, 1996
- Duy Ngoc
- Â Rang 1 episode, 1996
- Karen Corbett
- Â ORCA Facilitator 1 episode, 1996
- Philip Stammers
- Â Praxis Technician 1 episode, 1997
- Pia Manning
- Â Receptionist 1 episode, 1997
- Josie Palermo
- Â Belly Dancer 1 episode, 1997
- Dan Logan
- Â UBRI Assistant 1 episode, 1997
- John McCullough
- Â A / ... 1 episode, 1994
- Leila Koren
- Â Neri Look-A-Like 1 episode, 1994
- Michael Richards
- Â Nick 1 episode, 1994
- Rebecca Strok
- Â Orca Nurse 1 episode, 1994
- Jason Raftopoulos
- Â Snake 1 episode, 1996
- David Paul Kirkpatrick
- Â Immigration Official 1 episode, 1996
- Kerri-Lee Andrews
- Â UBRI Woman 1 episode, 1996
- Jeffery Frazier
- Â UBRI Worker 1 episode, 1996
- David Bradshaw
- Â Faceless Man 1 episode, 1997
- Pasha Elmahdy
- Â Cleaner 1 episode, 1997
- Brett Williams
- Â Countdown Officer 1 episode, 1997
- Texas
- Â UBRI Guard Dog 1 episode, 1997
- Nina Godino
- Â Bedouin Child 1 episode, 1997
- Nikita Rotumah
- Â Lilah 1 episode, 1997
- Louise Bennetto
- Â Gift Shop Owner 1 episode, 1994
- David Whiteley
- Â UBRI Scientist 1 episode, 1995
- Robert Cooper
- Â Neri's Father 1 episode, 1995
- Luke Jackson
- Â Kissing Boy 1 episode, 1996
- Luke Carroll
- Â Bobby 1 episode, 1997
- Megan Holloway
- Â Shop Attendant 1 episode, 1994
- David Hudson
- Â Johnny Mack 1 episode, 1995
- Alejandra Nicolazzo
- Â Kissing Girl 1 episode, 1996
- Warren Owens
- Â Ernie 1 episode, 1997
- Bianca Griffin
- Â Couple No. 1 1 episode, 1994
- Todd Pilkington
- Â Couple No. 1 1 episode, 1994
- Andrew Bibby
- Â Steve 1 episode, 1995
- Linda O'Grady
- Â Counsellor 1 episode, 1995
- Adrian Smith
- Â UBRI Assistant 1 episode, 1995
- Vanessa Girling
- Â Baby Mera 1 episode, 1995
- Zelie Bullen
- Â UBRI Diver 1 episode, 1997
- Lisa Thorpe
- Â Couple No. 2 1 episode, 1994
- Daniel Bowden
- Â Patrick 1 episode, 1995
- Yew Ling Tan
- Â Li Cheng 1 episode, 1995
- Phillip Bartlett
- Â Couple No. 2 1 episode, 1994
- Eric Milliken
- Â Joshua 1 episode, 1995
- Abbe Holmes
- Â Cinema V / ... 1 episode, 1994
- Dennis Lenox
- Â Guard 1 episode, 1995
- Hamish Hughes
- Â Cinema V / ... 1 episode, 1994
- Andrew Duffin
- Â Smithfield High 1 episode, 1994
- Frederick Duffin
- Â Corroboree Group 1 episode, 1994
- William Duffin
- Â Corroboree Group 1 episode, 1994
- Daniel Glutchen
- Â Corroboree Group 1 episode, 1994
- Dennis Hunter
- Â Corroboree Group 1 episode, 1994
- Timothy Wason
- Â Corroboree Group 1 episode, 1994
- Sam Wason
- Â Corroboree Group 1 episode, 1994
- Brad McMurray
- Â UBRI aid 1 episode, 1994
- Renai Caruso
- Â Myreka 1 episode, 1996
- Sally McDonald
- Â Lily 1 episode, 1997
- John Harvie Morris
- Â Alien (uncredited) 1 episode, 1997
- Shane Alexander
- Â Diver (uncredited) 1 episode, 1997