| Name | Character | Episodes |
|---|---|---|
| Kristin Kreuk | Cassandra Lee | 8 |
| Rossif Sutherland | Karl Alberg | 8 |
| Mya Lowe | Corporal Edwina Yen | 8 |
| Savonna Spracklin | Isabella Harbud | 8 |
| Aaron Douglas | Sergeant Sid Sokolowski | 8 |
| Fritzy-Klevans Destine | Constable Andy Kendrick | 8 |
| Fiona Vroom | Phyllis Diaz | 6 |
| Dakota Guppy | Holly Alberg | 4 |
| Paloma Kwiatkowski | Bree | 3 |
| Vic Michaelis | Sadie Whitaker | 3 |
| Alisha Newton | Devon Travis | 3 |
| Lucas Bryant | Roger Galbraith | 3 |
| Crystal Balint | Dr. Olive Duvall | 3 |
| Quinten James | Jesse | 2 |
| Gardiner Millar | Callum Hingle | 2 |
| Noah Reid | Tommy Cummins | 2 |
| Liza Huget | Mary Hingle | 2 |
| Claire Friesen | Sally Dublin | 2 |
| Kate Gajdosik | Reporter | 2 |
| James Cromwell | George Wilcox | 1 |
| Stana Katic | Zoe Strachan | 1 |
| Devon Sawa | Gordon Murphy | 1 |
| Paula Patton | Dr. Elizabeth Lewis | 1 |
| Jason Gray-Stanford | Blake Windsor | 1 |
| Erica Durance | Emma O'Brea | 1 |
| Brandi Alexander | Tonya Helenberger | 1 |
| Doug Chapman | Murray Zuckerman | 1 |
| Greyston Holt | Bobby Ransome | 1 |
| Ben Cotton | Benjamin Strachan | 1 |
| Kate Robbins | Mildred Harris | 1 |
| R.H. Thomson | Carlyle Burke | 1 |
| Nathan Witte | Ivan Sabiston | 1 |
| Cassandra Sawtell | Steph Alberg | 1 |
| Jill Morrison | Elsie Sokolowski | 1 |
| Tammy Gillis | Bronwen Travis | 1 |
| Keenan Tracey | Shane Sloan | 1 |
| Toby Levins | Charlie O'Brea | 1 |
| Benjamin Rogers | Marty Stanz | 1 |
| Ryan Allen | Gus Cooper | 1 |
| Marilyn Norry | Linda Ridding | 1 |
| Jarod Joseph | Sam Sabiston | 1 |
| David Attar | Robert Cross | 1 |
| Jonathan Whitesell | Riley Erlandson | 1 |
| Lisa Chandler | Janice Doncaster | 1 |
| Jay Brazeau | Frank Erlandson | 1 |
| Nicole LaPlaca | Rose | 1 |
| Graeme Duffy | Wendel Bryant | 1 |
| Jason Asuncion | Darren Gustafson | 1 |
| Christine Lippa | Glenda Hughson | 1 |
| James Paladino | Ethan Donaster | 1 |
| Andres Soto | Daryl Newton | 1 |