Doc Martin, one of UK's iconic TV characters, hangs up his stethoscope for the final time as the long-running titular series comes to an end. This one-hour retrospective spotlights the longevity and impact locally and around the world of Doc Martin over the years, as well as offering behind the scenes of the final season with the cast and crew. From scripting and pre-production to shooting and delivery, meet the regular characters that live and work in the picturesque Cornish town of Portwenn, the key crew behind the camera, the residents of Port Isaac, the show's real-life setting, and the visitors who come solely because Doc Martin films there.
| Actor | Role |
|---|---|
 Caroline CatzSelf - Narrator (voice) | Self - Narrator (voice) |
 Martin ClunesSelf | Self |
 Joe AbsolomSelf | Self |
 Robyn AddisonSelf | Self |
| AAnthony AinsworthSelf | Self |
 Eileen AtkinsSelf | Self |
| JJohnny BamfordSelf | Self |
 Selina CadellSelf | Self |
 Nigel ColeSelf | Self |
 Vincent FranklinSelf | Self |
| PPhilippa BraithwaiteSelf | Self |
| MMark CrowdySelf | Self |
| MMartin ScurrSelf | Self |
| JJulian UnthankSelf | Self |
| EEvie Bergson-KornSelf | Self |
| CChristina LowSelf | Self |
| JJames LeighSelf | Self |
 Fay RipleySelf | Self |
| CCaroline O'ReillySelf | Self |
| SSimon ArcherSelf | Self |
| CColin TownsSelf | Self |
| DDave Le BonSelf | Self |
| LLaura GilesSelf | Self |
| LLillie HamiltonSelf | Self |
| JJane BroomfieldSelf | Self |
| BBenos NobleSelf | Self |
 Ben MillerSelf | Self |