Olivers Divine Levering Theorie wordt op de proef gesteld wanneer hij en de POstables er niet in slagen een beschadigde brief van een militaire veteraan af te leveren, die een kwestie van leven of dood is.
Nee, helaas is Signed, Sealed, Delivered: Lost Without You nog niet beschikbaar op Netflix in Nederland.
| Directing | Kevin Fair | Director |
| Camera | Sean Rooney | Best Boy Grip |
| Production | Sara Brown | Background Casting Director |
| Production | Marcie Gold | Co-Executive Producer |
| Production | Kevin Fair | Executive Producer |
| Production | Michael Prupas | Executive Producer |
| Costume & Make-Up | Stephanie Janyk | Assistant Costume Designer |
| Crew | Dean Fitzpatrick | Transportation Coordinator |
| Sound | James Jandrisch | Music |
| Crew | Melissa Muller | Craft Service |
| Costume & Make-Up | Amy-Leigh Poitras | Assistant Makeup Artist |
| Crew | Bruce Crawford | Stunt Double |
| Production | Steve Kinghorn | Assistant Location Manager |
| Art | Mykhila Drummond | Assistant Art Director |
| Art | Ali Tavasoli | Lead Set Dresser |
| Production | Matthew Blecha | Supervising Producer |
| Camera | Sean Roche | Camera Trainee |
| Art | Jonathan Peter Fill | Set Dresser |
| Directing | Lee Karlovic | Third Assistant Director |
| Production | Shana Landsburg | Casting |
| Camera | Molly Mackinnon | Second Assistant Camera |
| Art | Jessica Campbell | Assistant Property Master |
| Costume & Make-Up | Lilia Afsahi | Assistant Hairstylist |
| Production | Jackie Lind | Casting |
| Production | Allen Lewis | Supervising Producer |
| Directing | Annabelle Wilczur | Second Assistant Director |
| Crew | Bridget Beall | Craft Service |
| Crew | Ian Doig | Animal Wrangler |
| Sound | Valerie Biggin | Music Supervisor |
| Production | Laura Obenaus | Assistant Production Coordinator |
| Editing | Kipp Lightburn | Online Editor |
| Sound | Rick Senechal | Foley Recording Engineer |
| Sound | Ian Mackie | Foley Artist |
| Art | Lila McKinlay | Props |
| Costume & Make-Up | Michelle McDonald | Costume Set Supervisor |
| Art | Malika Montague | Assistant Property Master |
| Production | Adrian Bojidar | Assistant Production Coordinator |
| Editing | Eugen Mihalicka | Assistant Editor |
| Sound | Don Harrison | Foley Artist |
| Production | Martha Williamson | Executive Producer |
| Production | Allen Lewis | Production Manager |
| Art | Charles Ouelette Pelletier | Props |
| Production | Doreen Davis | Production Accountant |
| Production | Sepideh Merchant | Post Production Coordinator |
| Costume & Make-Up | Desire Egan | Assistant Costume Designer |
| Production | Joel S. Rice | Executive Producer |
| Camera | Kyle Douglas Murray | Second Assistant Camera |
| Sound | Sebastian Salm | Sound Mixer |
| Crew | Randy Rohrback | Generator Operator |
| Production | Chase Brettoner | Assistant Production Coordinator |
| Production | Jennifer Lloyd | Payroll Accountant |
| Crew | Tsering Rongae | Transportation Captain |
| Production | Brandi Harkonen | Co-Executive Producer |
| Camera | Lyndsay Gresl | Camera Trainee |
| Sound | Jeff Jackman | Sound Re-Recording Mixer |
| Writing | Martha Williamson | Writer |
| Camera | Catherine Mallette | Camera Operator |
| Editing | Saeed Vahidi | Assistant Editor |
| Crew | Jason Macintyre | Post Production Supervisor |
| Crew | Darcy Davis | Special Effects Coordinator |
| Camera | Ty Klassen | Dolly Grip |
| Lighting | William McKnight | Gaffer |
| Camera | Tyler Walzak | Camera Operator |
| Camera | Adam Sliwinski | Director of Photography |
| Art | Jacqueline Miller | Set Decoration |
| Visual Effects | Tyler Mirecki | Visual Effects Coordinator |
| Lighting | Bryn McCashin | Best Boy Electric |
| Camera | Mark Hyunwoo Park | Key Grip |
| Directing | Holly Atchison | Script Supervisor |
| Art | Sean Kirkby | Production Design |
| Costume & Make-Up | Rosa Terracciano | Key Hair Stylist |
| Production | Michael Farias | Location Manager |
| Sound | Jeff Jackman | Sound Designer |
| Visual Effects | Barry Liu | Visual Effects Supervisor |
| Camera | Tegan Kolodinski | First Assistant Camera |
| Writing | Brandi Harkonen | Story |
| Crew | Brett Armstrong | Stunt Coordinator |
| Sound | Roger Morris | Dialogue Editor |
| Art | Kayla Mackey | Art Direction |
| Directing | Matthew Blecha | First Assistant Director |
| Production | Harvey Kahn | Producer |
| Camera | Duane Prentice | Still Photographer |
| Production | Yale Kussin | Production Coordinator |
| Directing | Jojo Lau | Script Coordinator |
| Costume & Make-Up | Valerie Halverson | Costume Design |
| Costume & Make-Up | Erin Mackenzie | Key Makeup Artist |
| Editing | Tony Dean Smith | Editor |
| Camera | Ryan Plummer | Still Photographer |
| Camera | Robert Siuda | First Assistant Camera |
| Art | Laurin Kelsey | Property Master |
| Sound | Paul Novokshonoff | Boom Operator |
| Sound | Greg Stewart | Sound Re-Recording Mixer |
