Editing Doc Martin (section)

===Final main cast===
<!--THE ORDER OF THE CAST HERE IS DETERMINED BY THE ORDER THAT THEY ARE BILLED PER MOS:TV, AND NOT PER CURRENT/FORMER STATUS-->

* [[Martin Clunes]] as Martin Ellingham – village GP "Doc" Martin has no bedside manner. He despises small talk and is straightforward with patients, delivering his diagnoses and advice without trying to protect their feelings, though he is genuinely concerned about their health. Clunes also plays Martin's father in a [[flashback (narrative)|flashback]] to Martin's childhood in one episode.
* [[Caroline Catz]] as Louisa Ellingham (née Glasson) – teacher at Portwenn Primary School, later becomes school headmistress, eventually Dr. Ellingham's wife.
* [[Ian McNeice]] as Bert Large – plumber and local entrepreneurial businessman who tries and fails at numerous [[get rich quick scheme]]s.
* [[Joe Absolom]] as Al Large – Bert's son, who works in a variety of jobs during the series.
* [[Selina Cadell]] as Sally Tishell – a pharmacist, who overtly displays unrequited romantic feelings for Ellingham.
* [[John Marquez (actor)|John Marquez]] as Joe Penhale (series 3–10) – police officer Penhale greatly admires Ellingham, and believes they have a great working relationship, an optimistic assessment not shared by the doctor. Penhale has proudly referred to Ellingham and himself as "The Dynamic Duo". Ellingham focuses on Penhale's bumbling manner, but Penhale often shows surprising insight into the town's interpersonal dynamics.
* [[Eileen Atkins]] as Ruth Ellingham (series 5–10) – retired [[forensic psychiatrist]], who is also one of Martin's aunts.
* [[Jessica Ransom]] as Morwenna Large (née Newcross) (Series 5–10) – surgery receptionist.