# Dr. Quentin — The Big Four character guide

> Dr. Quentin in The Big Four by Agatha Christie.

**Role:** minor

**Also known as:** Quentin, Doctor Quentin

**First appearance:** 0005-vi-the-woman-on-the-stairs

## Who they are

A doctor who treats a key witness and aids Poirot.

## Relationships

### [Mr. Paynter](https://www.betterreads.dev/discover/the_big_four_se/characters/mr_paynter)

_professional_

Dr. Quentin and Mr. Paynter are likely colleagues or associates in the scientific or criminal context of the story.

### [Hercule Poirot](https://www.betterreads.dev/discover/the_big_four_se/characters/hercule_poirot)

_professional_

Dr. Quentin is a medical expert or scientist who provides professional assistance to Poirot.

### [Hercule Poirot](https://www.betterreads.dev/discover/the_big_four_se/characters/hercule_poirot)

_professional_

Dr. Quentin is a medical expert or scientist who provides professional assistance to Poirot.

### [Mr. Paynter](https://www.betterreads.dev/discover/the_big_four_se/characters/mr_paynter)

_professional_

Dr. Quentin and Mr. Paynter are likely colleagues or associates in the scientific or criminal context of the story.

### [Hercule Poirot](https://www.betterreads.dev/discover/the_big_four_se/characters/hercule_poirot)

_professional_

Dr. Quentin is a medical expert or scientist who provides professional assistance to Poirot.

### [Mr. Paynter](https://www.betterreads.dev/discover/the_big_four_se/characters/mr_paynter)

_professional_

Dr. Quentin and Mr. Paynter are likely colleagues or associates in the scientific or criminal context of the story.

## In the story

### [IX: The Yellow Jasmine Mystery](https://www.betterreads.dev/discover/the_big_four_se/chapters/ix-the-yellow-jasmine-mystery)

A locum tenens who attended Mr. Paynter. He administered a strychnine injection and later gave evidence about the poisoned curry.

### [X: We Investigate at Croftlands](https://www.betterreads.dev/discover/the_big_four_se/chapters/x-we-investigate-at-croftlands)

The doctor who attended Mr. Paynter; Poirot ultimately identifies him as the murderer after deducing the poison 'Yellow Jasmine'.

## Links

- HTML: https://www.betterreads.dev/discover/the_big_four_se/characters/dr_quentin
- Book: https://www.betterreads.dev/discover/the_big_four_se
- All characters: https://www.betterreads.dev/discover/the_big_four_se/characters