# Derek Kettering — The Mystery of the Blue Train character guide

> Derek Kettering in The Mystery of the Blue Train by Agatha Christie.

**Role:** major

**Also known as:** Mr. Kettering, Derek, M. Kettering, Monsieur Kettering

**First appearance:** 0005-iv-in-curzon-street

## Who they are

Ruth's estranged husband, a charming but reckless man under suspicion.

## Links

- HTML: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se/characters/derek_kettering
- Book: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se
- All characters: https://www.betterreads.online/discover/the_mystery_of_the_blue_train_se/characters